debut: 6/20/19
16,410 runs
My friend who limed with Socafighter was taught by Stephen Gould, who was agnostic. This article in Scientific American suggests that
only an imbecile can be sure that the crack in his back is not a stinking nematode .....
that scratch is nematode number 9
Quantum mechanics is science’s most precise, powerful theory of reality. It has predicted countless experiments, spawned countless applications. The trouble is, physicists and philosophers disagree over what it means, that is, what it says about how the world works. Many physicists—most, probably—adhere to the Copenhagen interpretation, advanced by Danish physicist Niels Bohr. But that is a kind of anti-interpretation, which says physicists should not try to make sense of quantum mechanics; they should “shut up and calculate,” as physicist David Mermin once put it.
Philosopher Tim Maudlin deplores this situation. In his 2019 book Philosophy of Physics: Quantum Theory, he points out that several interpretations of quantum mechanics describe in detail how the world works. These include the GRW model proposed by Ghirardi, Rimini and Weber; the pilot-wave theory of David Bohm; and the many-worlds hypothesis of Hugh Everett. But here’s the irony: Maudlin is so scrupulous in pointing out the flaws of these interpretations that he reinforces my skepticism. They all seem hopelessly kludgy and preposterous.
Maudlin does not examine interpretations that recast quantum mechanics as a theory about information. For positive perspectives on information-based interpretations, check out Beyond Weird by journalist Philip Ball and The Ascent of Information by astrobiologist Caleb Scharf. But to my mind, information-based takes on quantum mechanics are even less plausible than the interpretations that Maudlin scrutinizes. The concept of information makes no sense without conscious beings to send, receive and act upon the information.
Introducing consciousness into physics undermines its claim to objectivity. Moreover, as far as we know, consciousness arises only in certain organisms that have existed for a brief period here on Earth. So how can quantum mechanics, if it’s a theory of information rather than matter and energy, apply to the entire cosmos since the big bang? Information-based theories of physics seem like a throwback to geocentrism, which assumed the universe revolves around us. Given the problems with all interpretations of quantum mechanics, agnosticism, again, strikes me as a sensible stance.