Le 18-mars-06, à 16:00, [EMAIL PROTECTED] a écrit :

> If every mathematical structure exists , then mathematical structures > consisting > of a counterpart of me plus a "Harry Potter" universe exist. Yet this > is not > observed. Of course that might be coincidence. No it can't. This what the computationalist (or weaker) must explain. This is mainly what the list is all about. Hal Finney, like my oldest attempts, try to explain the lack of Harry Potter or white flying bunnies, by the abonormal huge rate of computations needed to sustain such "illusions" in a coherent way. My critics in a nutshell is that such an explanation cannot work once we make explicit the first and third person description. The first person, being unable to know the UD's delays of computations, cannot distinguish a high variety of little and less little programs, so that Hal Finney sort of explanation is incomplete (at best). My way of tackling the problem consists in translating the UDA in the language of a universal machine. Thanks to incompleteness this makes sense, and we eventually are lead to an arithmetical interpretation of the Platonist theories of everything, which observable consequences, like quantum logic, many-worlds interfering in a wavy fashion, etc. Peter, what are your postulates? I think you are postulating an aristotelian stuffy universe. Are you postulating comp? If yes, you are in difficulties (cf UDA), if not, what is your theory of mind? 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 -~----------~----~----~----~------~----~------~--~---