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J. B.

Hey Physics, Get Real! - The Chronicle Review - The Chronicle of Higher Education - 0 views

  • The new books on physics promise "a state-of-the-art tour of cutting-edge science that is changing the way we see our world," as the jacket blurb for The Hidden Reality puts it. But they are just recycling the once-startling propositions of Car­ter, Everett, Wheeler, Barrow, Tipler—and Nietzsche and Borges, for that matter.
  • These ideas, in fact, are just scientized versions of stoner thought experiments: What if our whole world is just a grain of dirt in the pocket of a giant? And there is a whole universe inside one grain of dirt in our pockets? What if our world is really just an experiment created by evil machines? And so on. Physicists' fantasies about parallel and virtual realms are not just stale. Increasingly they strike me as escapist and irresponsible.
  • Physics (along with biology) is STILL the primary deliverer of awe to our lives. This is the THE PRIMARY religious function that physics took over from all religions and churches centuries ago. It opens up minds and emotions whenever we visit its knowledge edges seriously.
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  • -these two disciplines are the core of our global church/temple/etc.
  • Physics and biology PLACE us in the giant scheme of things---not centrally---but tentatively, fragily, remarkably, appreciatively. They evoke cosmic gratitude for TODAY from us. THEY channel the divine to our self concerned lives, breaking us out of our narcissisms.
J. B.

Taking Science on Faith - New York Times - 0 views

  • The problem with this neat separation into “non-overlapping magisteria,” as Stephen Jay Gould described science and religion, is that science has its own faith-based belief system.
  • Over the years I have often asked my physicist colleagues why the laws of physics are what they are. The answers vary from “that’s not a scientific question” to “nobody knows.” The favorite reply is, “There is no reason they are what they are — they just are.” The idea that the laws exist reasonlessly is deeply anti-rational. After all, the very essence of a scientific explanation of some phenomenon is that the world is ordered logically and that there are reasons things are as they are. If one traces these reasons all the way down to the bedrock of reality — the laws of physics — only to find that reason then deserts us, it makes a mockery of science.
  • The multiverse theory is increasingly popular, but it doesn’t so much explain the laws of physics as dodge the whole issue. There has to be a physical mechanism to make all those universes and bestow bylaws on them. This process will require its own laws, or meta-laws. Where do they come from? The problem has simply been shifted up a level from the laws of the universe to the meta-laws of the multiverse.
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  • namely, on belief in the existence of something outside the universe, like an unexplained God or an unexplained set of physical laws, maybe even a huge ensemble of unseen universes, too. For that reason, both monotheistic religion and orthodox science fail to provide a complete account of physical existence.
  • the laws should have an explanation from within the universe and not involve appealing to an external agency. The specifics of that explanation are a matter for future research. But until science comes up with a testable theory of the laws of the universe, its claim to be free of faith is manifestly bogus.
J. B.

The Disenchanted Naturalist's Guide to Reality « On the Human - 0 views

  • It is one that most naturalists have sought to avoid, or at least qualify, reinterpret, or recast to avoid its harshest conclusions about the meaning of life, the nature of morality, the significance of our consciousness self-awareness, and the limits of human self-understanding.
  • Scientism is my label for what any one who takes science seriously should believe, and scientistic is just an in-your face adjective for accepting science’s description of the nature of reality.
  • the answers to the persistent questions are not what people want to hear, and the bad news may lead them to kill the messenger—scientific research
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  • So, scientists have an incentive to cover up
  • the mechanism Darwin discovered for building adaptations is the only game in town. Any explanation of the very existence of even the slightest adaptation must be Darwinian. 
  • Ever since Newton physics has ruled out purposes in the physical realm. If the physical facts fix all the facts, however, then in doing so, it rules out purposes altogether, in biology, in human affairs, and in human thought-processes.
  • The fundamental laws of nature are mostly timeless mathematical truths that work just as well backwards as forward, and in which purposes have no role.
  • the process that Darwin discovered–random, or rather blind variation, and natural selection, or rather passive environmental filtration–does all the work of explaining the means/ends economy of biological nature that shouts out ‘purpose’ or ‘design’ at us. What Darwin showed was that all of the beautiful suitability of living things to their environment, every case of fit between organism and niche, and all of the intricate meshing of parts into wholes, is just the result of blind causal processes. It’s all just the foresightless play of fermions and bosons producing, in us conspiracy-theorists, the illusion of purpose.
  • When it comes to life, natural selection, it turns out, is the only game in town.
  • One source of meaning on which many have relied is the intrinsic value, in particular the moral value, of human life. People have also sought moral rules, codes, principles which are supposed to distinguish us from merely biological critters whose lives lack (as much) meaning or value (as ours). Besides morality as a source of meaning, value, or purpose, people have looked to consciousness, introspection, self-knowledge as a source of insight into what makes us more than the merely physical facts about us. Scientism must reject all of these straws that people have grasped, and it’s not hard to show why. Science has to be nihilistic about ethics and morality.
  • Just because there is strong selection for a moral norm is no reason to think it right. Think of the adaptational benefits of racist, xenophobic or patriarchal norms. You can’t justify morality by showing its Darwinian pedigree.
  • The process of natural selection is not in general good at filtering for true beliefs, only for ones hitherto convenient for our lines of descent.
  • we can’t invest our moral core with more meaning than this: it was a convenience, not for us as individuals, but for our genes. There is no meaning to be found in that conclusion.
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    Alex Rosenberg pops the Naturalist's bubble.
J. B.

Hawking contra Philosophy | Philosophy Now - 0 views

  • Science has always included a large philosophical component, whether at the level of basic presuppositions concerning evidence, causality, theory-construction, valid inference, hypothesis-testing, and so forth, or at the speculative stage where scientists ignore the guidance offered by well-informed philosophers only at risk of falling into various beguiling fallacies or fictions.
  • this diagnosis, or something like it, applies to a great many of the speculative notions nowadays advanced by theoretical physicists including proponents of string theory (Hawking among them) and some of the more way-out quantum conjectures. These thinkers appear unworried – blithely unfazed, one is tempted to say – by the fact that their theories are incapable of proof or confirmation, or indeed of falsification as required by Karl Popper and his followers. After all, it is the peculiar feature of such theories that they posit the existence of that which at present, and perhaps forever, eludes any form of confirmation by observation or experiment.
  • reliance on theoretical commitments that exceed the utmost scope of empirical testing is something that some philosophers would attribute even to basic physical laws or widely taken-for-granted scientific truths. On their view there is no such thing as plain empirical self-evidence, since observations are always to some degree theoretically informed. By the same token, scientific theories are always ‘underdetermined’ by the best evidence to hand, meaning that the evidence is always open to other, equally rational interpretations given some adjustment of this or that ‘auxiliary hypothesis’ or negotiable element of background belief.
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  • scientific theories – especially theories of the ultra-speculative kind that preoccupy theoretical physicists like Hawking – involve a great deal of covert philosophising which may or may not turn out to promote the interests of knowledge and truth. This had better be recognised if we are not to be taken in by a false appeal to the authority of science as if it possessed the kind of sheer self-evidence or indubitable warrant that could rightfully claim to evict ‘philosophy’ as a relic from the pre-scientific past.
  • Here Hawking’s argument shows all the signs of a rudderless drifting between various positions adopted by different philosophers from Kant to the present. He spends a lot of time on what seems to be a largely unwitting rehash of episodes in the history of idealist or crypto-idealist thought, episodes which have cast a long shadow over post-Kantian philosophy of science. That shadow still lies heavy on Hawking’s two central ideas of M-theory and model-dependent realism. They both look set to re-open the old Kantian split between a ‘noumenal’ ultimate reality forever beyond human knowledge and a realm of ‘phenomenal’ appearances to which we are confined by the fact of our perceptual and cognitive limits. So if Hawking is right to charge some philosophers with a culpable ignorance of science then there is room for a polite but firm tu quoque, whether phrased in terms of pots calling kettles black or boots on other feet. For it is equally the case that hostility or indifference toward philosophy can sometimes lead scientists, especially those with a strong speculative bent, not only to reinvent the wheel but to produce wheels that don’t track straight and consequently tend to upset the vehicle.
  • Indeed, there is a sense in which the scientific enterprise stands or falls on the validity of counterfactual-conditional reasoning, that is to say, reasoning from what necessarily would be the case should certain conditions obtain or certain hypotheses hold. In its negative guise, this kind of thinking involves reasoning to what would have been the outcome if certain causally or materially relevant factors had not been operative in some given instance. Hawking constantly relies on such philosophical principles in order to present and justify his claims about the current and likely future course of developments in physics. Of course he is very welcome to them but he might do better to acknowledge their source in ways of thinking and protocols of valid argumentation that involve distinctly philosophical as well as scientific grounds.
  • To speak plainly: one useful job for the philosopher of science is to sort out the errors and confusions that scientists – especially theoretical physicists – sometimes fall into when they give free rein to a speculative turn of mind.
  • To adapt the economist Keynes’ famous saying: those scientists who claim to have no use for philosophy are most likely in the grip of a bad old philosophy or an insufficiently thought-out new one that they don’t fully acknowledge.
  • There is a large supply of present-day (quasi-)scientific thinking at the more – let us say – creative or imaginative end of the scale that falls into just this hybrid category of high-flown metaphysical conjecture tenuously linked to certain puzzling, contested, or at any rate far from decisive empirical results.
  • these are pseudo-dilemmas brought about by a mixture of shaky evidence, dubious reasoning on it, fanciful extrapolation, and a flat refusal to entertain alternative theories (such as that of the physicist David Bohm) which considerably lighten the burden of unresolved paradox.
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    Christopher Norris critiques Stephen Hawking's claim that philosophy is dead.
J. B.

bylogos: The Demolition of Adam - 0 views

  • If humans evolved, they could not have been originally upright. Our sinfulness and selfishness are then due, not to an historical fall, but, rather, to our evolutionary heritage. This undermines the doctrine of original sin, as well as the Reformed notion of Christ's atonement as a payment for human. Dr. Schneider thus favors a universalism where all humans will be saved.
  • Dr. Waltke asserts, "We have to go with the scientific evidence…if Scripture has a collectivity represented as an individual, that doesn't bother me.”
  • The Bible, however, flatly contradicts the dubious notion that Adam and Eve were chiefs of a tribe of 10,000 evolved humans. Genesis 2-3 states: “when there was no man (5)…the LORD God formed the man of dust from the ground and breathed into his nostrils the breath of life, and the man became a living creature (7)…Then the LORD God said, ‘It is not good that the man should be alone’(18)…And the rib that the LORD God had taken from the man he made into a woman…(22)…The man called his wife’s name Eve, because she was the mother of all living” (3:20).
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  • Note that the text says: “the man became a living creature”, NOT: “the living creature became a man”.
  • After all, if mainstream science is right about the age of things, why should it not also be right about the evolutionary origin of things? If we must listen to the overwhelming majority of geologists, why must we not similarly listen to the overwhelming majority of biologists?
  • Why are so many theologians compromising on Adam? Because they have already given in to mainstream science on other aspects of Gen.1-11, thereby painting themselves into an epistemic corner.
  • We observe, en passant,  that the demand of population genetics for a minimum of 10,000 ancestors at any past time opposes also the biblical account of Noah’s Flood, with its eight survivors from whom all humans today derive (Gen.6-11; 1 Peter 2:5).
  • Using mainstream dating, the fossil record implies that suffering, disease, death, thorns, and earthquakes all existed long before Adam’s fall. These must thus all belong to God’s initial “very good” creation. This means that Adam’s fall caused no physical change in the world. Yet a major Biblical theme is that the entire cosmos was adversely affected by sin (Gen.3:17-18; Rom.8:18-25), from which it must be cleansed (2 Peter 3, Rev.21). The Biblical terms of renewal, redemption, reconciliation all imply the restoration of the world to an original good state, full of joy and harmony.
  • One cannot build an historical gospel on a non-historical Adam. Neither can one build an historical Adam on a largely non-historical Genesis 1-11.
  • In sum, the current pressure on the Biblical Adam is rooted in earlier concessions made regarding the age of the earth. This ushered in a new, flexible hermeneutic that takes its cue from mainstream science, thereby undermining Biblical authority.
  • Historical sciences, such as evolutionary biology and geology, interpret the data in terms of hypothetical past events. Worldview presuppositions play a crucial role in deciding what alleged events are plausible. Mainstream science bans the supernatural. It presumes purely natural events, constant mutation rates, and the like. Mainline science’s population estimate from genetic diversity, for example, is based on statistical arguments that infer a minimum of 10,000 to be most probable; it does not deem an initial couple to be impossible…just very unlikely.
  • It is futile for Christians to solicit credibility by bowing to worldly science. Mainstream science denies miracles. Therefore, such a quest for respectability must culminate with the plight of liberal theologian Rudolph Bultmann. Bultmann, seeking to be credible to modern man, denied all Biblical miracles, including the physical resurrection of Jesus Christ. Is that really where we want to go? What undermines Christian faith is not Biblical consistency but, rather, unbiblical compromise. The wiser strategy is thus to boldly uphold the Sola Scriptura of the Reformation, proclaiming all that the Bible teaches. And if that causes us to lose credibility in the eyes of the worldly intelligentsia, so be it.
J. B.

Prominent Atheist Professor of Law and Philosophy Thomas Nagel Calls Intelligent Design... - 0 views

  • the data at the crime scene usually can't tell us very much about that intelligence.
  • the tools of natural science are useless to determine the "I.Q." of the intelligence, the efficiency vs. the emotionalism of the intelligence, or the motive of the intelligence. That data, analyzed by only the tools of natural science, often cannot permit the investigator to construct a theory of why the perpetrator acted. The mental and conscious processes going on in the criminal's mind are outside the scope of the sciences of chemistry and physics. Thus it is obvious that scientific methods can lead to the conclusion that an intelligence did something, even if those same methods cannot tell you who specifically did it, or why they did it.
  • "the purposes and intentions of God, if there is a god, and the nature of his will, are not possible subjects of a scientific theory or scientific explanation. But that does not imply that there cannot be scientific evidence for or against the intervention of such a non-law-governed cause in the natural order" (p. 190).
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  • Professor Nagel has read ID-supportive works such as Dr. Behe's Edge of Evolution (p. 192). He reports that based on his examination of their work, ID "does not seem to depend on massive distortions of the evidence and hopeless incoherencies in its interpretation" (pp. 196-197). He reports that ID does not depend on any assumption that ID is "immune to empirical evidence" in the way that believers in biblical literalism believe the bible is immune to disproof by evidence (p. 197). Thus, he says "ID is very different from creation science" (p. 196).
  • He reports that the "presently available evidence" comes "nothing close" to establishing "the sufficiency of standard evolutionary mechanisms to account for the entire evolution of life" (p. 199).
  • He notes that his judgment is supported by two prominent scientists (Marc Kirschner and John Gerhart, writing in the Oct. 2005 book Plausibility of Life), who also recognized that (prior to offering their own theory, at least) the "available evidence" did not "decisively settle[]" whether mutations in DNA "are entirely due to chance" (p. 191). And he cites one Stuart Kauffman, a "complexity theorist who defends a naturalistic theory of emergence," that random mutation "is not sufficient" to explain DNA (p. 192).
  • He does not, however, say that the evidence compels acceptance of ID; instead, some may consider as an alternative to ID that an "as-yet undiscovered, purely naturalistic theory" will supply the deficiency, rather than some form of intelligence (p. 203).
  • Prof. Nagel says that "some part of the high school curriculum" "should" include "a frank discussion of the relation of evolutionary theory to religion" but that this need not occur in biology classes if the biology teachers would find this too much of a "burden" (p. 204)
  • He rejects any rule that well-educated, intelligent laymen such as himself must simply accept the assertions of the leading evolutionary biologists that the evidence in favor of evolution disproves intelligent design. Using his informed judgment, he rejects the claim that the scientific data "decisively" disproves intelligent design. He, an atheist, says that as a matter of science, intelligent design could possibly be correct. And he says it would be constitutional to say as much in a public school science class.
  • The emotionalism which scientists have brought to this issue since before the Scopes Trial, even if directed against a real, rather than imaginary target, has introduced a non-scientific motivation into the hearts of evolutionary biologists that has biased and rendered unreliable their evaluation of the data, especially the relatively recent data concerning DNA and molecular biology. Moreover, those who are convinced that we are not-very-far-descended from troupes of apes that engage in group dominance struggles should monitor themselves for the possibility that they are engaged less in a search for truth than in a search for dominance. An Achilles' Heel of modern science is the satisfying sense of pride that comes from having successfully dominated the people around you. Its origin is from the apes and its goal is to flatter emotion, not to facilitate reason.
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