Why Physics Needs Philosophy

A short piece by Tim Maudlin. Good as far as it goes, but it doesn't go deep enough.  Maudlin rightly opposes the "reigning attitude":

The reigning attitude in physics has been “shut up and calculate”: solve the equations, and do not ask questions about what they mean.  But putting computation ahead of conceptual clarity can lead to confusion.

He has some other useful things to say about philosophy's role in conceptual clarification.  But there is no mention of what ought to strike one as a major task: an explanation of how recherché physical theories relate to the world we actually live in, the world in its human involvement, what Edmund Husserl called die Lebenswelt, the life-world.  This is a task that falls to philosophy, but not to contemporary analytic philosophy with its woeful ignorance of the phenomenological tradition.  On the other hand, judging by the philosophical scribblings of physicists, they would make a mess of it too.

A related task of philosophy is to debunk and expose the bad philosophy churned out by physicists in their spare time when they need to turn a buck and play the public intellectual.  Understandable: doing physics is hard while writing bad philosophy is easy. Think Lawrence Krauss for a recent prime offender.  And then there is the awful Hawking-Mlodinow book mentioned by Maudlin, entitled The Grand Design.

Five years ago I began a series on it.  But the first chapters were so bad, I didn't bother to proceed beyond my first entry.  Having just re-read that post, it stands up well.  

One more point about Maudlin. He (mis)uses 'mystical' as a pejorative, thereby betraying his ignorance of the subject of mysticism.  That's an Ayn Rand-y type of blunder.

Global Warming: Questions That Need Distinguishing

Proof-of-global-warmingMy posting of the graphic to the left indicates that I am a skeptic about global warming (GW).  To be precise, I am skeptical about some, not all, of the claims made by the GW activists.  See below for some necessary distinctions. Skepticism is good.  Doubt is the engine of inquiry and a key partner in the pursuit of truth.

A skeptic is a doubter, not a denier.  To doubt or inquire or question  whether such-and-such is the case is not to deny that it is the case.  It is a cheap rhetorical trick of GW alarmists when they speak of GW denial and posture as if it is in the ball park of Holocaust denial. 

What can a philosopher say about global warming? The first thing he can and ought to say is that, although not all questions are empirical, at the heart of the global warming debate are a set of empirical questions. These are not questions for philosophers qua philosophers, let alone for political ideologues. For the resolution of these questions we must turn to reputable climatologists whose roster does not sport such names as 'Al Gore,' 'Barbra Streisand,' or 'Ann Coulter.' Unfortunately, the global warming question is one that is readily 'ideologized' and the ideological gas bags of both the Right and the Left have a lot to answer for in this regard.

I have not investigated the matter with any thoroughness, and I have no firm opinion. It is difficult to form an opinion because it is difficult to know whom to trust: reputable scientists have their ideological biases too, and if they work in universities, the leftish climate in these hotbeds of political correctness is some reason to be skeptical of anything they say.

For example, let's say scientist X teaches at Cal Berkeley and is a registered Democrat. One would have some reason to question his credibility.  He may well tilt toward socialism and away from capitalism and be tempted to beat down capitalism with the cudgel of global warming.  Equally, a climatologist on the payroll of the American Enterprise Institute would be suspect.   I am not suggesting that objectivity is impossible to attain; I am making the simple point that it is difficult to attain and that scientists have worldview biases like everyone else.  And like everyone else, they are swayed by such less-than-noble motives as the desire to advance their careers and be accepted by their peers.  And who funds global warming research?  What are their biases?  And who gets the grants?  And what conclusions do you need to aim at to get funded?  It can't be a bad idea to "follow the money" as the saying goes.

1. Clearly defined terminology.
2. Quantifiability.
3. Highly controlled conditions. "A scientifically rigorous study maintains direct control over as many of the factors that influence the outcome as possible. The experiment is then performed with such precision that any other person in the world, using identical materials and methods, should achieve the exact same result."
4. Reproducibility. "A rigorous science is able to reproduce the same result over and over again. Multiple researchers on different continents, cities, or even planets should find the exact same results if they precisely duplicated the experimental conditions."
5. Predictability and Testability. "A rigorous science is able to make testable predictions."

These characteristics set the bar for strict science very high, and rightly so.  Is climate science science according to these criteria? No, it falls short on #s 3 and 4.  At the hardest hard core of the hard sciences lies the physics of meso-phenomena.  Climatology does not come close to this level of 'hardness.'  So don't be bamboozled: don't imagine that the prestige of physics transfers undiminished onto climatology.  It is pretty speculative stuff and much of it is ideologically infected. 

Bad Philosophy in Scientific American: Why Life Does Not Really Exist!

We humans naturally philosophize.  But we don't naturally philosophize well.  So when science journalists and scientists try their hands at it they often make a mess of it.  (See my Scientism category for plenty of examples.) This is why there is need of the institutionalized discipline of philosophy one of whose chief offices is the exposure and debunking of bad philosophy and pseudo-philosophy of the sort exhibited in so many 'scientific' articles.  Although it would be a grave mistake to think that the value of philosophy resides in its social utility, philosophy does earn its social keep in its critical and debunking function.   But now on to the topic.

…………..

Is there extraterrestrial life? 

To answer this question, one would have to have at least a rough idea of what counts as living and what counts as nonliving.  For example, "A working definition lately used by NASA is that 'life is a self-sustaining system capable of Darwinian evolution.'"

In a recent Scientific American article,  Why Life Does not Really Exist, problems with the NASA definition are pointed out.  I won't try to evaluate the putative counterexamples the author adduces, but simply assume that the NASA definition is not adequate.  Indeed, I will assume something even stronger, namely, that no adequate definition is available, no razor-sharp definition, no set of properties that all and only living things possess, no set of properties that cleanly  demarcates the animate from the inanimate, and is impervious to counterexample.

Supposing that is so, what could explain it?  According to the Scientific American article (emphasis added) what explains the difficulty of defining life is that life does not really exist!  It can't be defined because it is not there to be defined.  You heard right, boys and girls:

Why is defining life so frustratingly difficult? Why have scientists and philosophers failed for centuries to find a specific physical property or set of properties that clearly separates the living from the inanimate? Because such a property does not exist. Life is a concept that we invented. On the most fundamental level, all matter that exists is an arrangement of atoms and their constituent particles. These arrangements fall onto an immense spectrum of complexity, from a single hydrogen atom to something as intricate as a brain. In trying to define life, we have drawn a line at an arbitrary level of complexity and declared that everything above that border is alive and everything below it is not. In truth, this division does not exist outside the mind. There is no threshold at which a collection of atoms suddenly becomes alive, no categorical distinction between the living and inanimate, no Frankensteinian spark. We have failed to define life because there was never anything to define in the first place.

This startling passage provokes a couple of questions. 

The first is whether the author's conclusion, which we may take to be the conjunction of the bolded sentences, follows from the difficulty or even the impossibility of finding an adequate definition of life.  The answer is: obviously not!  One cannot conclude that nothing is living from the fact, if it is a fact, that it is difficult or even impossible to say what exactly all and only living things have in common that makes them living as opposed to nonliving.  That would be like arguing that nothing is a game (to invoke Wittgenstein's overworked example) because there is nothing that all and only games have in common that distinguishes them from non-games.  There are games and there are non-games and this is so whether or not one can say exactly what distinguishes them.

Not all concepts are such that necessary and sufficient conditions for their correct application can be specified.  There are vague concepts, family-resemblance concepts, open-textured concepts.  The concept bald, the concept game, the concept art. Their being vague, etc., does not prevent them from having clear instances and clear non-instances. A man with no hair on his head is bald.  Your humble and hirsute correspondent is most definitely not bald.  The fact that we don't know what to say about Donald 'Comb-Over' Trump does not change the fact that some of us assuredly are and some of assuredly not.

The second question is whether the author's conclusion, namely, that life is a concept that we have invented is even coherent.  It isn't.  I'll give two arguments.  I beg the indulgence of those readers who will feel that I am wasting my time and yours with the dialectical equivalent of rolling a drunk or beating up a cripple.  I agree that in general there is something faintly absurd about responding to a position whose preposterousness renders it beneath refutation.

A. If life does not exist, but is a mere concept we have invented, then a fortiori consciousness does not exist and is a mere concept we have invented. For if the difficulties in defining life are a reason for thinking there is no life, then the difficulties in defining consciousness are a reason to deny that there is consciousness. For example, there appears to be something very much like intentionality below the level of conscious mentality in the phenomena of potentiality and dispositionality. (See Intentionality, Potentiality, and Dispositionality: Some Points of Analogy.)  This causes trouble for Brentano's claim that intentionality is the mark of the consciously mental.  But it  would surely be absurd to deny the existence of consciousness on the ground that defining it is not easy.  There is a second point.  Those of a naturalist bent are highly likely to maintain, with John Searle, that either conscousness is a biological phenomenon or at least cannot exist except in living organisms.  So if there is no life, then there is no consciousness either.

But only conscious beings wield concepts.   Only conscious beings classify and subsume and judge. So if there is no life, there are no concepts either, and thus no concept of life. Therefore, life cannot be a concept. It is incoherent to suppose that a lifeless material object could classify some other objects in its environment as living and others as nonliving.

Moreover, if consciousness does not exist, but is a mere concept we conscious beings have invented,  then obviously consciousness is not a mere concept we have invented but rather the presupposition of there being any concepts at all. The notion that consciousness is a mere concept is self-refuting.

B.  The author tell us that "What differentiates molecules of water, rocks, and silverware from cats, people and other living things is not 'life,' but complexity. 

Note how the author takes back with his left hand what he has proferred with his right.  He appeals to the difference between the nonliving and the living only to imply that there is no difference, the only difference being one of material complexity.  But a difference between what and what?  Now if he were maintaining that life emerges at a certain level of material complexity he would be maintaining something that, though not unproblematic, would at least not be incoherent.  For then he would not be denying that life exists but affirming that it is an emergent phenomenon.  But he is plainly not an emergentist, but an eliminativist.  He is saying that life simply does not exist. 

If the difference between the nonliving and the living is the difference between the less complex and the more complex, then actually infinite sets in mathematics are alive.  For they are 'infinitely' complex. If you say that only material systems can be alive,, but no abstracta,  what grounds your assertion?  If life is a concept we impose, why can't we impose it on anything we like, including actually infinite sets of abstracta?  Presumably we cannot do this  because of the nature of sets and the nature of life where these natures are logically antecedent to us and our conceptual impositions.  Sets by their very nature are nonliving.  But then appeal is being made to what lies beyond the reach of conceptual decision, which is to say: life exists and is what it is independently of us, our language, and our conceptualizations.  One cannot argue from our poor understanding of what life is to its nonexistence.

The fallacy underlying this very bad Scientific American piece could be called the eliminativist fallacy.  An eliminativist is one who, faced with a problem he cannot solve — in this case the problem of crafting an adequate definition of life — simply denies one or more of the data that give rise to the problem.  Thus, in this case, the author simply denies that life exists.  But then he denies the very datum that got him thinking about this topic in the first place.

Not good!

Steven Pinker on Scientism, Part One

Herewith, some commentary  on a very poor article by Steven Pinker, Science is not Your Enemy

I will first state in general why I consider the article of low quality, and then quote a large chunk of it and intersperse some comments (bolded).  This is Part One.  Part Two to follow if I have the time and energy, and if I can convince myself that continuing is worth my time and energy.

In the meat of his article, Pinker puts forth a number of mostly silly straw-man definitions of 'scientism' which he then has no trouble dismissing.  For example, he suggests that on one understanding of scientism, it is the claim that "all current scientific hypotheses are true."  Is Pinker joking? No reputable writer has ever said that or defined scientism in terms of it. 

After he is done with his straw-man exercise, Pinker proffers his own definition, which, as best as I can make out, comes to the following.  Scientism consists in the espousal of two ideals operative in science and which "scientism seeks to export to the rest of intellectual life."    "The first is that the world is intelligible."  "The second ideal is that the acquisition of knowledge is hard."

So Pinker's definition is essentially this.  Scientism is the view that all of our intellectual life ought to be governed by two ideals, the ideal that the world is intelligible and the ideal that knowledge-acquisition is difficult.

Now that is a pretty sorry excuse for a definition of scientism.  First of all, the intelligibility of the world is not an ideal of inquiry, but a presupposition of inquiry.  Inquirers do not aim at or strive after intelligibility; they presuppose it.  What they strive after is knowledge and understanding, a striving that presupposes that their subject matter is understandable, and is indeed, at least in part, understandable by us.  Second, that acquiring knowledge is hard is not an ideal either; it is a fact.  Third, Pinker's definition is vacuous and trivial.  Apart from a few radical skeptics, who would maintain that we ought not presuppose that the world is intelligible or maintain that knowledge acquisition is easy?  Even those who maintain that there are limits to what we can understand  presuppose that it is intelligible that there should be such limits.

Fourth, and most importantly, Pinker's definition is just a piece of self-serving rhetoric that has nothing to do with scientism as it is actually discussed by competent scholars.  What competent scholars discuss is something rather more specific than Pinker's nebulosities and pious platitudes.  There are a number of different types of scientism, but the following will give you some idea of how the term is actually used by people who know what they are talking about:


Eric Voegelin, "The Origins of Scientism," Social Research, Vol. 15, No. 4 (December 1948), pp. 462-494. Voegelin speaks of

. . . the scientistic creed which is characterized by three principal dogmas: (1) the assumption that the mathematized science of natural phenomena is a model science to which all other sciences ought to conform; (2) that all realms of being are accessible to the methods of the sciences of phenomena; and (3) that all reality which is not accessible to sciences of phenomena is either irrelevant or, in the more radical form of the dogma, illusionary.

Compare Hilary Putnam, Mathematics, Matter and Method (Cambridge University Press,
1975), pp. xiii (emphasis added):

. . . I regard science as an important part of man's knowledge of reality; but there
is a tradition with which I would not wish to be identified, which would say that scientific knowledge is all of man's knowledge. I do not believe that ethical statements are expressions of scientific knowledge; but neither do I agree that they are not knowledge at all. The idea that the concepts of truth, falsity, explanation, and even understanding are all concepts which belong exclusively to science seems to me to be a perversion . . .

Putnam does not need the MavPhil's imprimatur and nihil obstat, but he gets them anyway, at least
with respect to the above quotation. The italicized sentence is vitally important. In particular, you will be waiting a long time if you expect evolutionary biology to provide any clarification of the crucial concepts mentioned. See in particular, Putnam's "Does Evolution Explain Representation?"
in Reviewing Philosophy (Harvard University Press, 1992).

Here is my characterization of scientism:

Scientism is a philosophical thesis that belongs to the sub-discipline of epistemology. It is not a thesis in science, but a thesis about science.  The thesis in its strongest form is that the only genuine knowledge is scientific knowledge, the knowledge generated by the natural sciences of physics, chemistry, biology and their offshoots. The thesis in a weaker form allows some cognitive value to the social sciences, the humanities, and other subjects, but insists that natural-scientific knowledge is vastly superior and authoritative and is as it were the 'gold standard' when it comes to knowledge. On either strong or weak scientism, there is no room for first philosophy, according to which philosophy is an autonomous discipline, independent of natural science, and authoritative in respect to it. So on scientism, natural science sets the standard in matters epistemic, and philosophy’s role is at best ancillary.  Not a handmaiden to theology in this day and age; a handmaiden to science.

I will now quote and comment on some of Pinker's text: 

The term “scientism” is anything but clear, more of a boo-word than a label for any coherent doctrine. Sometimes it is equated with lunatic positions, such as that “science is all that matters” or that “scientists should be entrusted to solve all problems.” Sometimes it is clarified with adjectives like “simplistic,” “naïve,” and “vulgar.” The definitional vacuum allows me to replicate gay activists’ flaunting of “queer” and appropriate the pejorative for a position I am prepared to defend.

Pinker gets off to a rocky start with these straw-man definitions.  Who ever defined 'scientism' as the view that "science is all that matters" or that "scientists should be entrusted to solve all problems"?  Furthermore, there is no such "definitional vacuum" as Pinker alleges.  The man has simply not done his homework.  If he had studied the literature on the subject, he would have encountered a number of specific, precise definitions, such as the one from Voegelin above. 

Scientism, in this good sense, is not the belief that members of the occupational guild called “science” are particularly wise or noble.

Who ever said it was?

On the contrary, the defining practices of science, including open debate, peer review, and double-blind methods, are explicitly designed to circumvent the errors and sins to which scientists, being human, are vulnerable. Scientism does not mean that all current scientific hypotheses are true; most new ones are not, since the cycle of conjecture and refutation is the lifeblood of science.

Stop the straw-manning!  Who would ever get it into his head to think that all current scientific hypotheses are true?  And who ever maintained that this is what scientism means?

It is not an imperialistic drive to occupy the humanities; the promise of science is to enrich and diversify the intellectual tools of humanistic scholarship, not to obliterate them.

Nice rhetoric, but what does it mean concretely?  And to say that scientism is not imperialistic and expansionist simply flies in the face of  what major proponents of it maintain.  According to Edmund O. Wilson, "It may not be too much to say that sociology and the other social sciences, as well as the humanities, are the last branches of biology to be included in the Modern Synthesis." (On Human Nature, Harvard UP, 1978, p. 90; quoted in Mikael Stenmark, "What is Scientism?" Religious Studies, vol. 33, no. 1, March 1997, p. 16)  If the humanities are branches of biology, then that counts as an "occupation" of the territory  of the humanities by a natural science.

If the only genuine knowledge is natural-scientific knowledge, then the only genuine knowledge of the mind is via neuroscience and behavioral psychology; and if reality is all and only what is accessible to natural-scientific knowledge, then not only is phenomenological and introspective knowledge bogus, but the mind as we actually experience it is illusory.  To fail to see a threat to the humanities here is to be willfully blind.

And it [scientism] is not the dogma that physical stuff is the only thing that exists. Scientists themselves are immersed in the ethereal medium of information, including the truths of mathematics, the logic of their theories, and the values that guide their enterprise. In this conception, science is of a piece with philosophy, reason, and Enlightenment humanism. It is distinguished by an explicit commitment to two ideals, and it is these that scientism seeks to export to the rest of intellectual life.

I am afraid that Pinker hasn't thought his position through very well.  I am glad to hear that he thinks that there are truths and values in addition to "physical stuff."  What I'd like him to tell us is which natural science  is equipped to elucidate truth, falsity, explanation, inference, normativity, rationality, understanding, and all the rest.  Biology perhaps?


The Linder Gallery, c.1622-1629, Cordover Collection, LLC

The first is that the world is intelligible.

This is better referred to as a presupposition of scientific inquiry rather than as an ideal of such inquiry, but let's not quibble.  It is certainly the case that all inquiry, scientific or not, presupposes the intelligibility of its subject-matter, not to mention the power of our minds to access at least part of this intelligibility.  But pointing this out does nothing to support scientism  in any nonvacuous sense. 

The phenomena we experience may be explained by principles that are more general than the phenomena themselves. These principles may in turn be explained by more fundamental principles, and so on. In making sense of our world, there should be few occasions in which we are forced to concede “It just is” or “It’s magic” or “Because I said so.” The commitment to intelligibility is not a matter of brute faith, but gradually validates itself as more and more of the world becomes explicable in scientific terms. The processes of life, for example, used to be attributed to a mysterious élan vital; now we know they are powered by chemical and physical reactions among complex molecules.

What Pinker seem not to understand is that opponents of scientism are not opposed to natural-scientific inquiry.  He continues to waste his breath against a straw man.

Demonizers of scientism often confuse intelligibility with a sin called reductionism.

An awful sentence.  Let me rewrite it so that it makes some sense.  Demonizers of natural science (not scientism) often make the mistake of thinking that the quest for scientific understanding, which often takes the form of reducing X to Y, is somehow mistaken.  For example, these people think that if lightning is explained as an atmspheric electrical discharge, then this reductive explanation does not generate genuiine understanding.  But of course it does.

But again, what does this have to do with scientism, properly and narrowly understood?

Many of our cultural institutions cultivate a philistine indifference to science.

Sad but true!  But it is also true that our cultural institutions produce hordes of ill-educated scientists who know their specialties but are philistines outside of them. 

The second ideal is that the acquisition of knowledge is hard.

No one will deny that the acquisition of knowledge is hard.  This is a fact, not an ideal.  So far, Pinker has told us that scientism — in his mouth a 'rah-rah' word as opposed to a 'boo' word — is the view that two 'ideals should be promoted, namely, the intelligibility of nature and the fact that knowledge-acquisition is hard.

But this definition is quite empty since hardly anyone will oppose scientism so defined.  Who denies that inquiry presupposes intelligibility and that knowledge-acquisition is hard?

The world does not go out of its way to reveal its workings, and even if it did, our minds are prone to illusions, fallacies, and superstitions. Most of the traditional causes of belief—faith, revelation, dogma, authority, charisma, conventional wisdom, the invigorating glow of subjective certainty—are generators of error and should be dismissed as sources of knowledge.

Now the problem is not that Pinker is saying something trivial but that he is saying something false.  One source of knowledge is the testimony of experts and authorities and eye witnesses.  Indeed much of what we know about the natural world is known on the basis of the say-so of experts whose authority we credit.  For example, I know that there is no such thing as the luminiferous ether even though I have not replicated the Michelson-Morley experiement.  How do I know it?  I know it by reading it in reputable science texts.  Besides, how many physicists have replicated the Michaelson-Morley experiment or the experiments or observations that confirm relativity physics?  Could one do science at all if one took nothing on authority and tried to work everything out for oneself, including the advanced mathematics without which modern physics is unthinkable?  Think about it. So it is simply false to say, as Pinker does, that authority is a "generator of error."  Sometimes it is.  But mostly it isn't.

Similarly with "conventional wisdom."  Sometimes it leads us astray.  But mostly it doesn't. 

To understand the world, we must cultivate work-arounds for our cognitive limitations, including skepticism, open debate, formal precision, and empirical tests, often requiring feats of ingenuity. Any movement that calls itself “scientific” but fails to nurture opportunities for the falsification of its own beliefs (most obviously when it murders or imprisons the people who disagree with it) is not a scientific movement.

More platitudes!  Who denies this?  And what does any of this have to do with scientism?

 

Another Example of Awful Science Journalism

My first example is here.  Read it for context and for some necessary distinctions.  Now for a second example.  Adam Frank writes,

For Smolin there is no timeless world and there are no timeless laws. Time, he says, is real and nothing can escape it.

Time, of course, seems real to us. We live in and through time. But to physicists, time's fundamental reality is an illusion.

Ever since Newton, physicists have been developing ever-more exact laws describing the behavior of the world. These laws live outside of time because they don't change.

That means these laws are more real than time.

First of all, it can be true both that time is real and that not everything is in time.

Second, if you want to tell us that time is an illusion, just say that, don't say, oxymoronically, that its fundamental reality is an illusion.  Obviously, if something has reality, let alone fundamental reality, then it cannot be an illusion.

Third, as I argued earlier, it is impossible to maintain both that time is an illusion and that, e.g., the Big Bang occurred 12-13 billion years ago.  If you want to say that temporal becoming or temporal passage is an illusion, then say that; but don't confuse the rejection of temporal becoming with the rejection of time altogether.  For it could well be that time is real, but exhausted by the B-series, as I explained in the earlier post.  And this, I take it, is what most physicists maintain.  They think of time as the fourth dimension of a four-dimensional space-time manifold.  That is not a denial of the reality of time; it is a theory of what time is.

Fourth, it is intolerably sloppy to say that "to physicists," time is an illusion when, as is obvious, Smolin is a physicist who denies this!

Fifth, If the laws of physics don't change, how is it supposed to follow or "mean" (!) that "these laws are more real than time."   What on earth is this guy getting at?  Is he suggesting that time is an illusion because the laws of physics are real?  The laws of physics are real and they 'govern' what happens in the changing physical world which is also real. 

Frank, I take it, is a physicist.  So he must be capable of precise thinking and clear writing.  Why then does he write such slop as the above in his off-hours?  Why can't he write something clear and coherent that is helpful to the interested layman?

I fear that a lot of our contemporary scientists are hopelessly bereft of general culture.  They are brilliant in their specialties but otherwise uneducated.  But that does not stop the likes of Dawkins and Krauss and Coyne and Hawking and Mlodinow from spouting off about God and time and the meaning of life . . . .  They want to play the philosopher without doing any 'homework.'  They think it's easy: you just shoot your mouth off.

Why Do We Need Philosophy?

Why do we need philosophy?  There are several reasons, but one is to expose the confusions and absurdities of scientists and science journalists when they encroach ineptly upon philosophical territory.  This from science writer Clara Moskowitz in Controversially, Physicist Argues Time is Real:


NEW YORK — Is time real, or the ultimate illusion?

Most physicists would say the latter, but Lee Smolin challenges this orthodoxy in his new book, "Time Reborn" (Houghton Mifflin Harcourt, April 2013) . . . .

Time is an illusion?  And this is supposed to be orthodoxy?  But don't the cosmologists tells us that the universe began in a Big Bang some 12-13 billion years ago?  If time is an illusion, then that statement and statements like it cannot be true.  For if time is "the ultimate illusion," , then it is never true that event x is earlier than event y, that y is later than x, or that x and y are simultaneous (whether absolutely or relative to a reference-frame).  But surely the Big Bang is earlier than my birth, and my blogging is later than my having had breakfast.  If time is an illusion, however, then the so-called B-relations (as the philosophers all them) cannot be instantiated.  The B-relations are: earlier than, later than, and simultaneous with.  Physics cannot do without them.  If time is an illusion, then it cannot be true that the speed of light is finite (in a vacuum, approx. 186, 282 mi/sec).  But it is true, and because of it, sunlight takes time to arrive at Earth (about 8 min 19 sec).  It arrives later (temporal word!) than it started out.  Therefore, time cannot be an illusion.

My first point, then, is that the physicists themselves presuppose that time is not an illusion by the very fact that they employ such phrases as 'earlier than,' 'later than,' 'simultaneous with,' and a host of other temporal words and phrases.  Suppose two cosmologists are discussing whether the universe began 15 billion years ago or 12 billion years ago.  Debating this point, they presuppose that time is precisely not an illusion.  The past-tensed 'began' and the little word 'ago' make it clear why.  Reading on we come to this:

In a conversation with Duke University neuroscientist Warren Meck, theoretical physicist Smolin, who's based at Canada's Perimeter Institute for Theoretical Physics, argued for the controversial idea that time is real. "Time is paramount," he said, "and the experience we all have of reality being in the present moment is not an illusion, but the deepest clue we have to the fundamental nature of reality." 

Time is paramount?  No doubt! No time, no physics.  All of reality is in the present moment?  So what happened in the past is not part of reality?  When we inquire into what happened, whether as historians or as cosmologists, what then are we inquiring into?  Unreality? Mere possibility? Fiction?  Do you really want to say that all of reality is in the present moment?  There is a deep confusion here (whether it is chargeable to Smolin's account or the science writer's, I don't know):  It  one thing to affirm the doctrine of presentism according to which only the temporal present and its contents are real; it is quite another to affirm, as Smolin seems to be doing, that time is not exhausted by the B-series, the series of events ordered by the above-mentioned B-relations. 

 

Smolin said he hadn't come to this concept lightly. He started out thinking, as most physicists do, that time is subjective and illusory. According to Albert Einstein's theory of general relativity, time is just another dimension in space, traversable in either direction, and our human perception of moments passing steadily and sequentially is all in our heads.

 

We now see what is really going on here.  Smolin is not opposing the claim that time is an illusion, but the claim that time is exhausted by the B-series, where the B-series (this term from McTaggart) is the series of events ordered by the B-relations.  Clearly, there is a difference between saying that time is real, but exhausted by the B-series, and saying that time is unreal.  There is nothing particularly controversial about maintaining that time is real.  What is controversial is to maintain that real time involves not only the instantiation of the B-relations but also the (shifting) instantiation of the irreducible A-properties, pastness, presentness, and futurity. 

As we ordinarily think of it, time passes, flows, indeed 'flies.' Tempus fugit! as the Latin saying goes.  We think of events approaching us from the future, getting closer and closer until they become present, and then receding into the past becoming ever more past.  Thus, as a natural man, I think of my death as approaching, becoming less and less future, and my birth as receding, as becoming more and more past.  This belief in the reality of temporal becoming (as some philosophers call it) is part and parcel of our ordinary view of the world.  But physics, pace Smolin, needn't concern itself with it. 

Now it is not unreasonable to think of temporal passage or temporal becoming as a mind-dependent phenomena such that, in reality, there is no temporal becoming, and no (shifting) exemplification of the A-properties. All there is are events ordered by the B-relations.  But this is not to say that time is an illusion but that real time is exhaustively analyzable in terms of the B-relations.  Note also that if temporal becoming is mind-dependent, it doesn't follow that it is an illusion.  Phenomenal colors are m ind-dependent but not illusory.

There is more, but it doesn't get any better, and I have exposed enough confusions for one day.  To sum up:

1. One ought not confuse the claim that time is an illusion with the claim that time is exhausted by the B-series. 

2. That time is real is presupposed by both common sense and the practice of physicists.

3.  One ought not confuse  presentism, the view that only the temporally present exists,  with the claim that there is more to time than the B-series.

4.  One ought not confuse the claim that temporal becoming is mind-dependent with the claim that temporal becoming is an illusion.

5. One ought not confuse the claim that temporal becoming is an illusion with the claim that time is an illusion, or the claim that time is real with the claim that temporal becoming is real. 

 

Is Political Science Science?

The answer depends on what counts as science.  The so-called 'hard' sciences set the standard.  This useful article lists the following five characteristics of science in the strict and eminent sense:

1. Clearly defined terminology.
2. Quantifiability.
3. Highly controlled conditions. "A scientifically rigorous study maintains direct control over as many of the factors that influence the outcome as possible. The experiment is then performed with such precision that any other person in the world, using identical materials and methods, should achieve the exact same result."
4. Reproducibility. "A rigorous science is able to reproduce the same result over and over again. Multiple researchers on different continents, cities, or even planets should find the exact same results if they precisely duplicated the experimental conditions."
5. Predictability and Testability. "A rigorous science is able to make testable predictions."

These characteristics set the bar for strict science very high.  For example, is climate science science according to these criteria?  I'll leave you to ponder that question.  There are branches of physics that cannot satisfy all five criteria.  But most of physics and chemistry meets the standard.

Is political science science according to these criteria?  Obviously not. Political Scientists are Lousy Forecasters.

Am I suggesting that the only real knowledge is rigorously scientific knowledge?  Of course not.  Consider the knowledge we find in the first article to which I linked.  There is no doubt in my mind that each of the five criteria the author mentions is a criterion of science in the strictest sense.  (I leave open the question whether there are other criteria).  Now how do we know that?  By performing repeatable experiments in highly controlled conditions?  No.  By making testable predictions? No. 

We know that (1)-(5) are criteria of genuine science by reflecting on  scientific practice and isolating its characteristics.  When we do that we engage in the philosophy of science.  Since some of the philosophy of science gives us genuine knowledge about natural science, knowledge that it not itself scientific knowledge, it cannot be the case that all genuine knowledge is scientific knowledge.

That all genuine knowledge is scientific knowledge is the thesis of (strong) scientism.  Therefore, (strong) scientism is false.

Related post:  What is Scientism? 

Some Inaccurate Negative Stereotypes About Stereotypes

People ascribe a stereotype to everybody in the subject group. "All Germans are efficient." "All English people have bad teeth." In fact, these researchers were not able to locate anybody who believes that a stereotype is true of all members of the stereotyped group. Stereotypes are probabilistic tools, and even the most dull-witted human beings seem to know this. People who believe that Mexicans are lazy or that the French don't wash, understand perfectly well that there are lots of industrious Mexicans and fragrant Frenchmen.

Stereotypes exaggerate group characteristics. No, they don't. Much more often, the opposite is true. For example, the racial stereotypes that white Americans hold of black Americans are generally accurate; and where they are inaccurate, they always under-estimate a negative characteristic. The percentage of black American families headed by a female, for example, was 21 at the time of one survey (1978): the whites whose stereotypes were being investigated offered estimates of from 8 to 12 per cent. It is not true that stereotypes generally exaggerate group differences. As in this example, they are much more likely to downplay them.

Stereotypes blind us to individual characteristics. Nope. It is not the case that when we pass from a situation where we have nothing to go on but a stereotype (cab driver being hailed by young black male) to one where a person's individuality comes into play (interviewing a black job applicant), our stereotypes blind us to "individuating traits." On the contrary, researchers have found that the individuating traits are seized on for attention, and stereotypes discarded, with rather more enthusiasm than the accuracy of stereotypes would justify. Teachers' judgments about their students, for example, rest almost entirely on student differences in performance, hardly at all on race, class or gender stereotypes. This is as one would wish, but not as one would expect if the denigrators of stereotyping were to be believed.

The real function of stereotypes is to bolster our own self-esteem. Wrong again. This is not a factor in most stereotyping. The scientific evidence is that the primary function of stereotypes is what researchers very prettily call "the reality function." That is, stereotypes are useful tools for dealing with the world. Confronted with a snake or a faun, our immediate behavior is determined by generalized beliefs — stereotypes — about snakes and fauns. Stereotypes are, in fact, merely one aspect of the mind's ability to make generalizations, without which science and mathematics, not to mention much of everyday life, would be impossible. Researcher Clark R. McCauley:

Standing next to the bus driver, we are more likely to ask about traffic patterns than about the latest foreign film. On the highway, we try to squeeze into the exit lane in front of the man driving a 10-year-old station wagon rather than trying to pull in on the man driving a new Corvette. Looking for the school janitor, we are more likely to approach a young man in overalls than a young woman in overalls. This kind of discrimination on the basis of group differences can go wrong, but most of us probably feel that we are doing ourselves and others a favor when we respond to whatever cues and regularities our social environment affords us.

Taken verbatim from John Derbyshire, Stereotypes Aren't So Bad

Tim Maudlin: Hawking “Just Doesn’t Know What He’s Talking About”

In this Atlantic article on the philosophy of cosmology, Tim Maudlin states:

Hawking is a brilliant man, but he's not an expert in what's going on in philosophy, evidently. Over the past thirty years the philosophy of physics has become seamlessly integrated with the foundations of physics work done by actual physicists, so the situation is actually the exact opposite of what he describes. I think he just doesn't know what he's talking about. I mean there's no reason why he should. Why should he spend a lot of time reading the philosophy of physics? I'm sure it's very difficult for him to do. But I think he's just . . . uninformed.

This became evident to me in October of 2010 when I sat down to study Hawking and Mlodinow, The Grand Design.  I soon discovered it was rubbish.  Here are my notes on Chapter One.  After studying Chapter Two I decide the trash-to-treasure ratio was so unfavorable as not to justify further discussion.  I mean, it's work writing these posts!

This Atlantic piece is well worth attention.  It is free of sort of nonsense I have criticized in Krauss and Coyne and Hawking and others.






Where the Conflict Really Lies: Science, Religion, and Naturalism: Notes on the Preface

I now have Alvin Plantinga's new book in my hands.  Here are some notes on the preface.  Since I agree with almost everything in the preface, the following batch of notes will be interpretive but not critical.  Words and phrases  enclosed in double quotation marks are Plantinga's ipsissima verba

1. Plantinga is concerned with the relations among monotheistic religion, natural science, and naturalism.  His main thesis is that there is "superficial conflict but deep concord" between natural science and monotheistic religion but  "superficial concord but deep conflict" between science and naturalism. 

2. The great monotheistic religions (Judaism, Christianity, and Islam) affirm the existence of "such a person as God."  Naturalism is a worldview that entails the nonexistence of such a person.  "Naturalism is stronger than atheism." (p. ix) Naturalism entails atheism, but atheism does not entail naturalism.  One can be an atheist without being a naturalist.  John McTaggart Ellis McTaggart is an example. (My example, not Plantinga's.)  But one cannot be a naturalist without being an atheist.  This is perhaps obvious, which is why Plantinga doesn't explain it.  Roughly, a naturalist holds that the whole of reality (or perhaps only the whole of concrete reality) is exhausted by the space-time system and its contents.  No one who holds this can hold that there is such a person as God, God being a purely spiritual agent.

To put it my own way, theistic religion and naturalism could not both be true, but they could both be false.  This makes them logical contraries, not contradictories.  Their being the former suffices to put them in real conflict.  For many of us this is what the ultimate worldview choice comes down to.

3. Plantinga rightly points out that while naturalism is not a religion, it is a worldview that is like a religion.  So it can be properly called a quasi-religion.  (p. x) This is because it plays many of the same roles that a religion plays.  It provides answers to the Big Questions: Does God exist? Can we survive our bodily deaths? How should we live?

I would add that there are religious worldviews and anti-religious worldviews, but that natural science is not a worldview.  Science is not in the business of supplying worldview needs: needs for meaning, purpose, guidance, norms and values. Science cannot put religion out of business, as I argue here, though  perhaps in some ways that Plantinga would not endorse.

4. Given that naturalism is a quasi-religion, there is a sense in which there is a genuine science vs. religion conflict, namely, a conflict between science and the quasi-religion, naturalism.  Very clever!

5. Plantinga's claim that "there is no serious conflict between science and religion" puts him at odds with what I call  the Dawkins Gang and what Plantinga calls the Four Horsemen of the New Atheism: Richard Dawkins, Daniel Dennett, Christopher Hitchens, and Sam Harris.  Plantinga, who never fails us when it comes to wit and style, suggests that the atheism of these four "is adolescent rebellion carried on by other means" (p. xi)  that doesn't rise to the level of the the old atheism of Bertrand Russell and John Mackie.  "We may perhaps hope that the new atheism is but a temporary blemish on the face of serious conversation in this crucial area."  That is indeed the hope of all right-thinking and serious people, whether theists or atheists.

6. Plantinga fully appreciates that modern natural science is a magnficent thing, "the most striking and impressive intellectual phenomenon of the last half millenium." (p. xi)  This has led some to the mistake of thinking that science is the ultimate court of appeal when it comes to the fixation of belief.  But this can't be right for two reasons.  First, science gives us no help in the areas where we most need enlightenment: religion, politics, and morals, for example. (p. xii)  There are worldview needs, after all, and science cannot supply them.  "Second, science contradicts itself, both over time and at the same time." (p. xii)  Indeed it does.  But no one, least of all Plantinga,  takes that as an argument against science as open-ended inquiry.  A question to ruminate on:  Should not religion also be thought of as open-ended and subject to correction?

7.  I would say that if there is demonstrable conflict between a religious belief and a well-established finding of current natural science, then the religious belief must give way.  Plantinga commits himself to something rather less ringing: if there were such a conflict, then "initially, at least, it would cast doubt on those religious beliefs inconsistent with current science."(p. xii).  But he doesn't think there is any conflict between "Christian belief and science, while there is conflict between naturalism and science." 

8. One apparent conflict is between evolution and religion, another between miracles and science.  Plantinga will argue that these conflicts are merely apparent.  Theistic religion does not conflict with evolution but with a "philosophical gloss or add-on to the scientific theory of evolution: the claim that it is undirected . . . ." (p. xii) As for miracles, Plantinga says he will show that they do not violate the causal closure of the physical domain and the various conservation laws that govern it. "Any system in which a divine miracle occurs . . . would not be causally closed; hence such a system is not addressed by those laws." (p. xiii)  That sounds a bit fishy, but we shall have to see how Plantinga develops the argument.

9. As for the "deep concord" between theistic thinking and science, it is rooted in the imago Dei.  If God has created us in his image, then he has created us with the power to understand ourselves and our world.  This implies that he he has created us and our world "in such a way that there is a match between our cognitive powers and the world." (p. xiv)  I would put it like this: both the intelligibility of the world and our intelligence have a common ground in God.  This common ground or source secures both the objectivity of truth and the possibility of our knowing some of it, and thereby the possibility of successful science.

10.  But when it comes to naturalism and science, there is "deep and serious conflict."    Naturalism entails materialism about the human mind.  It entails that we are just complex physical systems.  If so, then Plantinga will argue that "it is improbable, given naturalism and evolution, that our cognitive faculties are reliable."  If this can be shown, then the conjunction of naturalism and evolution is not rationally acceptable. "Hence naturalism and evolution are in serious conflict: one can't rationally accept them both." (p. xiv)  

Plantinga on Where the Conflict Lies

The publication of Alvin Plantinga's latest book has been noted in the NYT (HT: Dave Lull):

In “Where the Conflict Really Lies: Science, Religion and Naturalism,” published last week by Oxford University Press, he unleashes a blitz of densely reasoned argument against “the touchdown twins of current academic atheism,” the zoologist Richard Dawkins and the philosopher Daniel C. Dennett, spiced up with some trash talk of his own.

Mr. Dawkins? “Dancing on the lunatic fringe,” Mr. Plantinga declares. Mr. Dennett? A reverse fundamentalist who proceeds by “inane ridicule and burlesque” rather than by careful philosophical argument.

On the telephone Mr. Plantinga was milder in tone but no less direct. “It seems to me that many naturalists, people who are super-atheists, try to co-opt science and say it supports naturalism,” he said. “I think it’s a complete mistake and ought to be pointed out.”

Exactly right.  The notion that science supports the philosophical position, naturalism, is an error no less grotesque for being widespread. My categories Naturalism and Scientism may contain some helpful material.

Why Science Will Never Put Religion Out of Business

If science can eventually provide what religion promises, then science will eventually put religion out of business.  But can science provide what religion promises?  I will argue that it cannot.  My argument will  not assume that any religion, or any combination of religions, is true, wholly or in part.  Perhaps no actual or possible religion makes contact with reality at any point.  Perhaps every actual or possible religion is nothing but an elaborate expression of human neediness, of human wishes, dreams, hopes, and fears. Still, there remains the fact of these fears and hopes, and the question whether anything can assuage the former and fulfill the latter.  I will begin by listing the main types of problem that religion addresses, and then ask whether current or future science, or rather, a technology that implements current or future science, can supply the needs that religions cater to.

The Problems Religion Addresses

1. The first category of problems includes the facts that shook young prince Siddartha to his core, moved him to forsake the royal compound with its impressive perquisites and blandishments and set him on the austere path to becoming Buddha, the supremely enlightened one who saw to the bottom of our predicament and saw the way out (as his followers believe), and went on to found Buddhism.  What shook Siddartha and shocked him deeply were sickness, old age, death, and everything connected with them, everything that causes them and everything they bring in their train. We can lump all this under the rubric of natural evil: suffering and misery in all its forms that arises from natural causes.  For Buddha the fundamental fact and the fundamental problem was that of suffering, which is why the First Noble Truth, which is not only first in the order of presentation but also first in the order of importance, is "All is suffering," sarvam dukkham.

2. The second category is that of moral evil.  These are the problems that come into the world via the exercise of free will, from the merest unkindness on up to the horrors of rape, torture, slavery, mass murder, abuse of power by governments and their agents, as well as by private individuals, and all the crimes that fill the history books and the pages of every newspaper in every corner of the globe every day.  Here belong all the ills that derive not just from weakness of will, but even more from perversity of will. 

3. The third category is that of moral and intellectual blindness, ignorance, and delusion, for example, the delusional thinking of someone who believes that happiness will be his if he succeeds in murdering his wife, collecting on a life insurance policy, and getting away with the crime.

4. Under the fourth rubric I collect all the problems associated with the ontological deficiency of the world of our ordinary experience.  All of the deeper heads in the East, the Near East and the West from Buddha and Ecclesiastes to Plato and Plotinus to Schopenhauer and Nietzsche have been struck and shocked by the vanity of existence and the transitoriness of life.  "I am aggrieved by the transitoriness of things," wrote Nietzsche to his friend Overbeck.  A homo religiosus with the bladed intellect of a skeptic, Nietzsche couldn't bring himself to accept any traditional religion.  And yet the religious need was alive in him, and it was that need that gave rise to his peculiar scheme of Redemption in the form of the Eternal Recurrence of the Same. 

Connected with the vanity of existence and the transience of life is the apparent meaninglessness of our lives.  Albert Camus famously argued in the The Myth of Sisyphus that the one and only serious philosophical problem is that of suicide.  Does the Absurd demand suicide as the only appropriate response?  That was his question.  He characterized the Absurd as the disproportion between the human craving for meaning and the universe's apparent meaninglessness.  What we want it cannot provide.  It is not that the universe is indifferent to us — indifference, after all, is a human attitude which presupposes concern and is a privation thereof — but beyond indifference and interestedness. The silence of ther universe is not a privation of speech, but something deeper — and worse.

We suffer from a lack of existential meaning, a meaning that we cannot supply from our own resources since any subjective acts of meaning-positing are themselves (objectively) meaningless. Connected with this is our deep existential insecurity which erupts into consciousness from time to time in the form of the anxiety, anguish, dread, Angst that Kierkegaard, Heidegger, and Sartre described.  This is not an anxiety about this or that; its intentional object is global, our very Being-in-the-world in Heideggerian jargon.  This is experienced as unheimlich.  Anxiety reveals that we are not at home in the world.   We feel desolation.  I feel fear for an intramundane being, ein innerweltliches Seiende; I feel Angst for my very In-der-Welt-sein, which is precarious desolate and lived in the face of das Nichts. (The connection between original sin and dread/anxiety is explored by Kierkegaard in The Concept of Dread.)

I don't claim that the above catalog is complete or even very well constructed: #4 bleeds back into #1 especially if suffering is taken in the radical Buddhist sense in which all-pervasive dukkha (suffering, ill, unsatisfactoriness) is undepinned by anatta (selflessness, insubstantiality) and anicca (radical, Heraclitean impermanence).  For the Buddhist, suffering goes deep, rooted as it is in the very ontological structure of the world of our ordinary experience. 

But I have said enough to make clear what sorts of problems religion addresses.  It follows that the salvation religion promises is not to be understood in some crass physical sense the way the typical superficial and benighted atheist-materialist would take it but as salvation from meaninglessness, anomie, spiritual desolation, Unheimlichkeit, existential insecurity, Angst, ignorance and delusion, false value-prioritizations, moral corruption irremediable by any human effort, failure to live up to ideals, the vanity and transience of our lives, meaningless sufferings and cravings and attachments, the ultimate pointlessness of all efforts at moral and intellectual improvement in the face of death . . . .

I should add that anyone who doesn't feel these problems to be genuine problems will have no understanding of religion at all.  And I remind the reader that I do not assume that any religion can deliver on its promises of salvation from the above litany of problems. My point is that natural science and its resulting technologies are powerless to solve these problems.

This ought to be self-evident to anyone who appreciates the problems.  Consider #1.  If suffering is rooted as deeply as the Buddhists think, in the very ontological structure of this changeful world, then obviously no mere manipulation of matter will solve the problem of suffering.  You can drug people into a stupor, but being rendered insensate is no solution to the problems of sentient suffering.  Suppose you don't think suffering is as deeply rooted as the Buddhists think.  Sickness, old age, and death remain inevitable despite the welcome alleviations and life-extensions that modern science makes possible.

As for the rest of my categories, it is self-evident that there are no technological solutions to moral evil, moral ignorance, and the apparent absurdity of life.  Is a longer life a morally better life?  Can mere longevity confer meaning?

The notion that present or future science can solve the problems that religion addresses is utterly chimerical.

So if you reject religion, then you ought to honestly face the problems without evasion and without cultivating 'pie-in-the-future' illusions.  Companion post:  Can Belief in Man Substitute for Belief in God?

Will Science Put Religion out of Business? A Preliminary Tilt at Transhumanism

A correspondent writes:

Here's how I think science will eventually put religion out of business. Soon medical science is going to be able to offer serious life extension, not pie-in-the-sky soul survival or re-incarnation, but real life extension with possible rejuvenation. When science can offer and DELIVER what religion can only promise, religion is done.

1.  Religion is in the transcendence business.  The type of transcendence offered depends on the particular religion.  The highly sophisticated form of Christianity expounded by Thomas Aquinas offers the visio beata, the Beatific Vision.  In the BV — you will forgive the abbreviation — the soul does not lose its identity.  It maintains its identity, though in a transformed mode, while participating in the divine life.  Hinduism and Buddhism offer even more rarefied forms of transcendence in which the individual self is either absorbed into the eternal Atman, thereby losing its individual identity, or extinguished altogether  by entry into Nirvana.  And there are cruder forms of transcendence, in popular forms of Christianity, in Islam, and in other faiths, in which the individual continues to exist after death  but with little or no transformation to enjoy delights that are commensurable with the ones enjoyed here below.  The crudest form, no doubt, is the popular Islamic notion of paradise as an endless sporting with 72 black-eyed virgins.  So on the one end of the spectrum: transcendence as something difficult to distinguish from utter extinction; on the other end, immortality mit Haut und Haar (to borrow a delightful phrase from Schopenhauer), "with skin and hair" in a realm of sensuous delights but without the usual negatives such as heart burn and erectile dysfunction. 

I think we can safely say that a religion that offers no form of transcendence, whether Here or Hereafter, is no religion at all.  Religion, then, is in the business of offering transcendence.

2.  I agree with my correspondent that if science can provide what religion promises, then science will put religion out  of business.  But as my crude little sketch above shows, different religions promise different things.  Now the crudest form of transcendence is physical immortality, immortality "with skin and hair."  Is it reasonable to hope that future science will give rise to a technology that will make us, or some of us, physically immortal?  I don't think so.  That would violate the Second Law of Thermodynamics according to which the entropy of an irreversible process in an isolated system increases leading in the case of the universe (which is both isolated and irreversible) to the heat death of the universe and the end of all life.  Granted, that is way off in the future.  But that is irrelevant if the claim is that physical immortality is possible by purely physical means.  And if that is not the claim, then the use of the phrase 'physical immortality' is out of place.  In a serious discussion like this word games are strictly verboten.

3.  Physical immortality is nomologically impossible, impossible given the laws of nature.  Of course, a certain amount of life extension has been achieved and it is reasonable to expect that more will be achieved. So suppose the average life expectancy of people like us gets cranked up to 130 years.  To underscore the obvious, to live to 130 is not to live forever. Suppose you have made it to 130 and are now on your death bed.  If you have any spiritual depth at all, your lament is likely to be similar to that of Jacob's: "The length of my pilgrimage  has been one hundred and thirty years; short and wretched has been my life, nor does it compare with the years my fathers lived during their pilgrimage." (Genesis 47:9) 

The important point here is that once a period of time is over, it makes no difference how long it has lasted.  It is over and done with and accessible only in the flickering and dim light of intermittent and fallible memory.  The past 'telescopes' and 'scrunches up,' the years melt into one another; the past cannot be relived.  What was distinctly lived is now all a blur.  And now death looms before you.  What does it matter that you lived 130 or 260 years? You are going to die all the same, and be forgotten, and all your works with you. After a while it will be as if you never existed.

The problem is not that our lives are short; the problem is that we are in time at all.  No matter how long a life extends it is still a life in time, a life in which the past is no longer, the future not yet, and  the present a passing away.  This problem, the problem of the transitoriness of life, cannot be solved by life extension even if, per impossibile, physical immortality were possible.  This problem of the transitoriness and vanity of life is one that religion addresses.

So my first conclusion is this.  Even if we take religion in its crudest form, as promising physical immortality, "with skin and hair," science cannot put such a crude religion out of business.  For, first of all, physical immortality is physically impossible, and second, mere life extension, even unto the age of a Methuselah, does not solve the problem of the transitoriness of life.

4.  But I have just begun to scratch the surface of the absurdities of transhumanism. No higher religion is about providing natural goodies  by supernatural means, goodies  that cannot be had by natural means.   Talk of pie-in-the-sky is but a cartoonish misrepresentation by those materialists who can only think in material terms and only believe in what they can hold in their hands. A religion such as Christianity promises a way out of the unsatisfactory predicament we find ourselves in in this life.  What makes our situation unsatisfactory is not merely our physical and mental weakness and the shortness of our lives.  It is primarily our moral defects that make our lives in this world miserable.  We lie and slander, steal and cheat, rape and murder.  We are ungrateful for what we have and filled with inordinate desire for what we don't have and wouldn't satisfy us even if we had it.  We are avaricious, gluttonous, proud, boastful and self-deceived.  It is not just that our wills are weak; our wills are perverse.  It is not just that are hearts are cold; our hearts are foul.  You say none of this applies to you?  Very well, you will end up the victim of those to whom these predicates do apply. And then your misery will be, not the misery of the evil-doer, but the misery of the victim and the slave.  You may find yourself forlorn and forsaken in a concentration camp. Suffering you can bear, but not meaningless suffering, not injustice and absurdity.

Whether or not the higher religions can deliver what they promise, what they promise first and foremost is deliverance from ignorance and delusion, salvation from meaninglessness and moral evil.  So my correspondent couldn't be more wrong.  No physical technology can do what religion tries to do.  Suppose a technology is developed that actually reverses the processes of aging and keeps us all alive indefinitely.  This is pure fantasy, of course, given the manifold contingencies of the world (nuclear and biological warfare, terrorism, natural disasters, etc.); but just suppose.  Our spiritual and moral predicament would remain as deeply fouled-up as it has always been and religion would remain in business.

5.  If, like my correspondent, you accept naturalism and scientism, then you ought to face what you take to be reality, namely, that we are all just clever animals slated to perish utterly in a few years, and not seek transcendence where it cannot be found.  Accept no substitutes!  Transhumanism is an ersatz religion.

It could be like this.  All religions are false; none can deliver what they promise.  Naturalism is true: reality is exhausted by the space-time system.  You are not unreasonable if you believe this.  But I say you are unreasonable if you think that technologies derived from the sciences of nature can deliver what religions have promised.

As long as there are human beings there will be religion.  The only way I can imagine religion withering away is if humanity allows itself to be gradually replaced by soulless robots.  But in that case it will not be that the promises of religion are fulfilled by science; it would be that no one would be around having religious needs.