----- Original Message ----- 
From: ""Hal Finney"" <[EMAIL PROTECTED]>
To: <everything-list@googlegroups.com>
Sent: Wednesday, July 26, 2006 08:28 AM
Subject: Re: Interested in thoughts on this excerpt from Martin Rees

> The real problem is not just that it is a philosophical speculation,
> it is that it does not lead to any testable physical predictions.
> The string theory landscape, even if finite, is far too large for
> systematic exploration.  Our ideas, with an infinite number of possible
> universes, are even worse.  Physicists see acceptance of anthropic
> explanations as the end of physics because there is no way to make
> quantitative predictions when there are so many degrees of freedom.

I'm not so sure that our ideas are worse. If you read some recent articles,


you see that they haven't really formulated rigorous theories about measure,
probabilities etc. of the multiverse. It's still very much in the
"handwaving" stage.


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