Dear Bruno and Friends, It looks like Srednicki and Hartle have been thinking of issues similar to ours about the notion of a measure. Please see the following paper. http://arxiv.org/abs/1004.3816 The Xerographic Distribution: Scientific Reasoning in a Large Universe Authors: Mark Srednicki, James Hartle (Submitted on 21 Apr 2010) Abstract: As observers of the universe we are physical systems within it. If the universe is very large in space and/or time, the probability becomes significant that the data on which we base predictions is replicated at other locations in spacetime. Predictions of our future observations therefore require an assumed probability distribution---the xerographic distribution---for our location among the possible ones. It is the combination of basic theory plus the xerographic distribution that can be predictive and testable by further observations. This is illustrated by examining a toy model of a classical deterministic universe with a fixed flat metric.
I strongly believe that we are very close to resolving many of the problems that we have wrestled with. Onward! Stephen -- You received this message because you are subscribed to the Google Groups "Everything List" group. To post to this group, send email to everything-l...@googlegroups.com. To unsubscribe from this group, send email to everything-list+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/everything-list?hl=en.