On Tuesday, August 13, 2002, at 08:47 PM, Wei Dai wrote: >> Seen this way, category and topos theory are worth studying for their >> own sake. I don't think it is likely that "every conceivable universe >> with consistent laws of mathematics has actual existence" (to nutshell >> my understanding of Tegmark's theory) is actually true (whatever that >> means). Nor do I take Schmidhuber's "all running programs" notion very >> seriously. Interesting ideas to play with, and to use some tools on. > > Well why don't you take these ideas seriously?
Lack of even the slightest piece of evidence for "all possible mathematical universes actually exist" and/or "the all runnable computer programs.' I also don't believe there are gods or other supernatural beings, for the same reason. If and when I see an experiment that points to there being other universes which have tangible existence, then I'll start to believe. --Tim May "That the said Constitution shall never be construed to authorize Congress to infringe the just liberty of the press or the rights of conscience; or to prevent the people of the United States who are peaceable citizens from keeping their own arms." --Samuel Adams

