Lawson,
I recently bought Tegmark's latest book in which he discusses these ideas. In
the book, he speculates on how the universe will eventually in various
scenarious like the Big Chill, Big Crunch, Big Rip, Big Snap and Big Bubble
depending if the inflation theory of the universe is correc
Tegmark's page has links to lots of his essays:
http://space.mit.edu/home/tegmark/crazy.html
http://space.mit.edu/home/tegmark/crazy.html
One thing that I didn't realize is that he believes that there's no real
difference in the kind of universes found in Type I, Type II and Type III
multiv
Lawson,
I can buy into the first and second level of this multiverse. But the third
level is very dubious, given that it's based on probabilities. And the fourth
level is purely speculative about the physical existence of mathematical
principles or structures.
At the end of the day, the
What he doesn't mention about this idea of a Type IV Multiverse where any
mathematical construct can be teh basis for a universe, is that this really
means that any *story* about a world defines a real universe where that story
exists. No matter what kind of story it is, whether about elves and
