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- Path: sparky!uunet!charon.amdahl.com!pacbell.com!ames!agate!agate!matt
- From: matt@physics2.berkeley.edu (Matt Austern)
- Newsgroups: sci.physics
- Subject: Re: No big crunch?
- Date: 5 Nov 92 10:18:39
- Organization: Lawrence Berkeley Laboratory (Theoretical Physics Group)
- Lines: 34
- Message-ID: <MATT.92Nov5101839@physics2.berkeley.edu>
- References: <1992Nov4.203930.20410@murdoch.acc.Virginia.EDU>
- <1d9lptINN94@agate.berkeley.edu>
- <Nov.4.20.34.21.1992.1961@ruhets.rutgers.edu>
- <1992Nov5.022306.25731@murdoch.acc.Virginia.EDU>
- Reply-To: matt@physics.berkeley.edu
- NNTP-Posting-Host: physics2.berkeley.edu
- In-reply-to: crb7q@kelvin.seas.Virginia.EDU's message of Thu, 5 Nov 1992 02:23:06 GMT
-
- In article <1992Nov5.022306.25731@murdoch.acc.Virginia.EDU> crb7q@kelvin.seas.Virginia.EDU (Cameron Randale Bass) writes:
-
- > In turn, I am much more sympathetic to baryonic dark matter if
- > it can be made to work. However, we seemed to be talking about
- > 'pixie' matter, a quantity that can probably be invented to
- > explain anything. About 'fixing up' omega, I am not sympathetic
- > at all. There seems to be no compelling need from my perspective
- > to have omega be one.
-
- I agree that it's a bit dogmatic to insist that omega be exactly 1; it
- seems to me a bit like inventing a problem and then triumphantly
- proclaiming that you have a solution. (And my understanding is that
- the folks who work on inflation now agree that omega need not be
- exactly 1.)
-
- However, I don't really think that nonbaryonic dark matter is so
- unnatural an idea. Again: most extensions of the Standard Model
- predict something or other that could be nonbaryonic dark matter. Any
- one of these possibilities sounds a bit bizarre and fanciful, but this
- prediction is so very generic that it doesn't seem too absurd that
- *something* or this sort exists. Nobody believes that the Standard
- Model is the full story, so why should it be so surprising if maybe
- some of the new non-Standard Model physics is cosmologically
- important?
-
- Of course, I'm not suggesting that anyone be so gullible as to believe
- everything that particle theorists tell them. I just think that this
- explanation is plausible enough so that we should try to do
- experiments to test it.
- --
- Matthew Austern Just keep yelling until you attract a
- (510) 644-2618 crowd, then a constituency, a movement, a
- austern@lbl.bitnet faction, an army! If you don't have any
- matt@physics.berkeley.edu solutions, become a part of the problem!
-