On Thu, Apr 02, 2015 at 10:30:04AM +0200, Bruno Marchal wrote: > > The intuition pump is that the recording does not contain any > computation, which is embarassing for a theory of mind requiring a > computation. With stroboscope like argument, such a computation is > not even well defined, nor is the time at which the movie is > executed.
You may well be right, my point only was that the intuition pump fails at the realistic levels of complexity of the recordings involved. I think Bruce appreciates this at least. > As for the looking-table, it need to be infinite if it > implements a universal machine. Not for implementing a finite subsequence of a computation as discussed in the MGA. Let us say we're interested in a 10 second sequence of observer moments. Running a program emulating that sequence might involve the machine passing through some 10^15 32 bit states (say - I'm just plucking figures from where the sun don't shine here). Then to add in the counterfactual nature of this, we would just need to create a lookup table with 32 ^ (10 ^ 15) entries in it. Rather large, agreed, but last time I looked, a lot less than infinite. -- ---------------------------------------------------------------------------- Prof Russell Standish Phone 0425 253119 (mobile) Principal, High Performance Coders Visiting Professor of Mathematics [email protected] University of New South Wales http://www.hpcoders.com.au Latest project: The Amoeba's Secret (http://www.hpcoders.com.au/AmoebasSecret.html) ---------------------------------------------------------------------------- -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/d/optout.
