Le 07-août-06, à 01:44, W. C. a écrit :

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> >> From: Bruno Marchal >> ... >> But it is easy to explain that this is already a "simple" consequence >> of >> comp. Any piece of "matter" is the result of a sum on an infinity of >> interfering computations: there is no reason to expect this to be >> "clonable" without cloning the whole UD, but this would not change any >> internal measures (by Church thesis and machine independence). >> ... > > I remember you said "comp can be tested experimentally due to others > consequences (like the observable interference among many computations, > etc.)". > Can you provide more details on how to do the experiment to see > "matter" is > the result of a sum on an infinity of interfering computations??? Comp says that there is a level of description of yourself such that you survive through an emulation done at that level. But the UD will simulate not only that level but all level belows. So comp makes the following prediction: if you look at yourself or at you neighborhood sufficiently close enough, you can in principle detect, indirectly, (by computing the relative comp histories) the presence of all the sublevel computations. So it is enough to observe closely your neighborhood. But of course experimental physicists does exactly that, and the fact that they infer Many-Worlds (many Histories/many computations) from their observations can be seen retrospectively as a confirmation of comp. (This explains that up to now, only people with a good grasp of the conceptual difficulties of the quantum theory can swallow the consequences of comp, more or less). To be sure "negative interferences" remains quite astonishing (after such an informal reasoning), but then if you take into account the results in computer science and mathematical logic, there are evidence that "negative interference" appears as related to some variant of the incompleteness phenomena. This is somehow counter-intuitive and hard to justify in "french". More in a summary which should come asap. I hope this already helps. Bruno http://iridia.ulb.ac.be/~marchal/ --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Everything List" group. To post to this group, send email to everything-list@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/everything-list -~----------~----~----~----~------~----~------~--~---