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- Path: sparky!uunet!psinntp!dg-rtp!sheol!throopw
- From: throopw@sheol.UUCP (Wayne Throop)
- Newsgroups: talk.origins
- Subject: Re: Science & Pseudoscience
- Summary: the line between science and pseudoscience is very fuzzy
- Message-ID: <727678604@sheol.UUCP>
- Date: 22 Jan 93 02:30:20 GMT
- References: <1993Jan19.162346.17045@hsr.no>
- Lines: 64
-
- : From: onar@hsr.no (Onar Aam)
- : Message-ID: <1993Jan19.162346.17045@hsr.no>
- : All major changes in science seem to come into three categories:
- : 1) the old model is a subset of the new model
- : (relativity vs Newtonian mech.)
- : 2) a general principle replaces an ad hoc theory.
- : (linear models of turbulence)
- : 3) one model wins in competition with contemporary models.
- : (theory of oxidation)
- : When a new scientific model completely discards the older model then it
- : seems to be because the older model is based on pseudoscience.
-
- Not a bad summary. But I don't think case (1) isn't as simple as it
- appears. Take the example of relativity vs Newtonian mechanics. True,
- the numerical answers gotten by the former approach those gotten by the
- latter as velocity and mass approach zero. But I contend calling this
- property of the two theories "subset"ness is a little misleading.
-
- For example, Newtonian gravity involved euclidean spacetimes and
- a "force" of gravity. Relativistic gravitation (in GR) completely
- does away with the notion of "force" in the Newtonian sense. It
- isn't just a refinement or improvement of the notion of force,
- it fundamentally throws that notion away and replaces it with
- noneuclidean geometric effects.
-
- Further, the notion of the "vital fluid", which Onar seems to find
- pseudoscientific seems to me to be quite akin to phlogiston, the
- luminiferous ether, or even the elements of earth, air, fire and water
- (and whatever the perfect celestial element was called, which I
- can't call to mind just now) of old Greek philosophy.
-
- None of these notions seem to me to be pseudoscientific. However,
- the notions of Orgone energy, crystal powers, channeling, numerology,
- maybe even N-rays and the like, all seem pseudoscience to me.
-
- The difference I see is that the notions of phlogiston, vital fluid,
- and the greek elements were all given up when the predictions they
- made didn't pan out. Astrology, Orgone energy, numerology, and so on
- were retained, despite quite strong counterevidence and numerous
- failed predictions.
-
- There are borderline cases, of course. Ranging perhaps through bodily
- humors, through Freudianism, through spontaneous human combustion,
- to hypnotism.
-
- ( Mental excersize: which way is the above list of "borderline"
- cases going: from pseudoscience to science or the reverse? And why? )
-
- And perhaps most odd, this leads to the notion that a particular
- theory can be scientific at one time, and pseudoscientific at
- some later time. And the above "mental excersize" is rendered
- difficult by the fact that perhaps there is no linear scale leading
- from one to the other classification. But that's science for you.
-
- : [..the vital fluid..] theory broke down, I think, when Urea was
- : synthetically generated in the laboratory.
-
- Has Newtonian gravity been pseudoscientific ever since the measurements
- of the displacement of stellar images by the mass of the sun? What about
- the change from bodily humors to the circulatory system. (I ask not to
- be flip, but because it seems an interesting grey area for further
- thought...)
- --
- Wayne Throop ...!mcnc!dg-rtp!sheol!throopw
-