[BM] The QTI, or the more general comp immortality, or arithmetical immortality is a complex subject, if only because it depends on what you mean by "you".

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[NP] Can you be more specific on this? [BM] Do you know Kripke semantic? A Kripke frame is just a set (of elements called worlds) with an accessibility relation among the worlds. In modal logic they can be used to characterize modal logical systems. The basic idea is that []p is true in world alpha, if p is true in all the worlds accessible from alpha. Dually, <>p is true in alpha is p is true in at least one world accessible from alpha. For example the law []p -> p will be satisfied in all reflexive frames---independently of the truth value of p. (a frame is reflexive if all the worlds in the frame access to themselves; for all alpha alpha R alpha, with R the accessibility relation). [NP] Sorry but I have no experience in this area but I can see that if yoU adopt non classical logic then it opens up all sorts of possibilities. Testing the consequences in reality is the tricky part. tHE Quantum mechanical formalism has been successful in so many respects so it gives us some confidence of being on the right track. [BM] Then, as other have already mentioned, what will remain unclear (and hard to compute) is the probability that you survive through some memory backtracking. The cat might survive in the worlds where he has been lucky enough to not participate to that experience, and, for all we know, such consistent continuation might have bigger weight than surviving through some quantum tunnel effect saving the brain's cat from the poison. The computation here are just not tractable, if we assume quantum mechanics, and still less, assuming only the comp hypothesis. The only certainty, assuming comp or QM, is that "you" cannot die. But obviously you can become amnesic of some part, if not all, your existence, or you existences. Like Otto Rossler summed up well : consciousness is a prison. With comp, and I think with QM, there is no escapes from being conscious, in a way or another. I don't like that, but then it is a consequence of those theories. [NP] Consciousness could be a prison yes. but MWI may be false of course, in which case maybe not. If comp says yes it is - as you suggest, then that's another matter. The question then is: is comp more fundamental than QM and if this be the case, should there not be some way we can utilise its predictive capabilities to distinguish (prove?) which interpretation of QM is the right one? Nick -- 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 everything-list+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/everything-list?hl=en.