On Sat, May 09, 2015 at 03:11:43PM +1200, LizR wrote: > On the subject of modifying the recording, let's say we recorded the states > of all the brain cells and so on. This would mean that the signals coming > in from the senses were encoded in the recording. If we assume the > experience was of looking at a red dot, it might be fairly easy to replace > the red dot nerve signals with green dot ones. But then you have to change > the memories to be of the relevant colour, and any thoughts to reflect that > fact... > > And this is from looking at a dot. Hmm. >
Yes - maybe my speculation was premature. As you say, it is easy enough to change the details at the optic nerve. But then, because the remainder of the brain's recording is unchanged, there would be no change in perception. Presumably, because consciousness is a fairly hologgraphic affair (although note recent results attributing conscious to a small piece of the brain near the hypothalamus), one needs to make sweeping changes to the recording in order to generate a distinct quale. Mind you, this is a question that is potentially answered by more neuroscience. > On 9 May 2015 at 14:59, LizR <[email protected]> wrote: > > > On 9 May 2015 at 10:37, Russell Standish <[email protected]> wrote: > > > > > >> > >> ISTM, the MGA works in a purely classical physical reality (such as > >> the non-robust case), but not a quantum one (which is a robust > >> case). This is not a problem for Bruno's argument, but it must be > >> clear that the MGA is _only_ relevant for the non-robust case. > >> > >> It's relevant for a robust classical case, which is presumably what is > > supposed to take place (or exist timelessly) in Platonia. > > In the robust case, all counterfactuals are physically instantiated, so the MGA fails (or at least Maudlin's version, although I think the MGA does too). -- ---------------------------------------------------------------------------- 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 ---------------------------------------------------------------------------- -- 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.
