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- Path: sparky!uunet!sun-barr!rutgers!dziuxsolim.rutgers.edu!ruhets.rutgers.edu!bweiner
- From: bweiner@ruhets.rutgers.edu (Benjamin Weiner)
- Newsgroups: sci.physics
- Subject: Re: Blue Sky and Olbers' Paradox
- Message-ID: <Aug.13.16.09.52.1992.25234@ruhets.rutgers.edu>
- Date: 13 Aug 92 20:09:53 GMT
- References: <Aug.3.15.34.40.1992.22219@ruhets.rutgers.edu> <1148@kepler1.rentec.com> <5AUG199216205357@zeus.tamu.edu> <1156@kepler1.rentec.com>
- Organization: Rutgers Univ., New Brunswick, N.J.
- Lines: 35
-
- Andrew Mullhaupt writes:
- >You are in danger of fragmenting physics into a disconnected set of
- >fragmentary explanations valid only in the neighborhood of legitimate
- >observations.
-
- It's not already?
-
- >This kind of physics has very strange versions of things like the second
- >law of thermodynamics.
-
- I wouldn't trust any kind of physics in which the second law of
- thermodynamics was anything other than faintly mysterious. It's
- a law of thermodynamics, anyway, induced from and valid in
- thermodynamics. If you want to pretend to "derive" it from something
- else you wind up making equally [valid/absurd] assumptions which
- are no less mysterious - the postulate of equal a priori
- probabilities ... the ergodic hypothesis, anyone? If someone asks
- me why you can't make a perpetual motion machine, I don't feel like
- responding "I can't prove that you can't, because I can't prove the
- ergodic hypothesis."
-
- >Note that the scientific method does not make these choices for you. The
- >scientific method is essentially intact even if you decide that 'observation'
- >means conducting an a priori computation using Conway's cellular automaton.
- >In one sense this is obvious - you can do science on some restricted piece
- >of the 'universe', but the upshot is that you cannot use the scientific method
- >to guarantee that your choices of observations are in any sense 'complete',
- >since the method is perfectly happy with a restricted choice.
-
- I thought it was fairly well conceded by now that scientists do not
- proceed by the "scientific method" as it is usually set forth.
-
- Ben Weiner
- ---
- "Which is the greater crime, to rob a bank or to own one?" - Brecht
-