Bruno Marchal writes:
> Le 02-déc.-06, à 06:11, Stathis Papaioannou a écrit : > > > In addition to spectrum reversal type situations, where no change is > > noted from > > either 3rd or 1st person perspective (and therefore it doesn't really > > matter to anyone: > > as you say, it may be occurring all the time anyway and we would never > > know), there is > > the possibility that a change is noted from a 1st person perspective, > > but never reported. > > If you consider a practical research program to make artificial > > replacement brains, all the > > researchers can ever do is build a brain that behaves like the > > original. It may do this because > > it thinks like the original, or it may do it because it is a very good > > actor and is able to pretend > > that it thinks like the original. Those brains which somehow betray > > the fact that they are > > acting will be rejected, but the ones that never betray this fact will > > be accepted as true > > replacement brains when they are actually not. Millions of people > > might agree to have these > > replacement brains and no-one will ever know that they are committing > > suicide. > > > Well, in the case comp will be refuted (for example by predicting that > electrons weigh one ton, or by predicting non eliminable white rabbits) > , then everyone will be able to guess that those people were committing > suicide. The problem is that we will probably copy brain at some level > well before refuting comp, if ever. > The comp hyp. entails the existence of possible relative zombies, but > from the point of view of those who accept artificial brains, if they > survive, they will survive where the level has been correctly chosen. A > linguistic difficulty is that the "where" does not denote a place in a > universe, but many similar "instants" in many consistent histories. But how good a predictor of the right level having been chosen is 3rd person observable behaviour? Stathis Papaioannou _________________________________________________________________ Be one of the first to try Windows Live Mail. http://ideas.live.com/programpage.aspx?versionId=5d21c51a-b161-4314-9b0e-4911fb2b2e6d --~--~---------~--~----~------------~-------~--~----~ 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?hl=en -~----------~----~----~----~------~----~------~--~---