On 2/17/08, Stathis Papaioannou <[EMAIL PROTECTED]> wrote: > In the final extrapolation of this idea it becomes clear that if any > computation can be mapped onto any physical system, the physical > system is superfluous and the computation resides in the mapping, an > abstract mathematical object. This leads to the idea that all > computations are actually implemented in a Platonic reality, and the > universe we observe emerges from that Platonic reality, as per eg. Max > Tegmark and in the article linked to by Matt Mahoney:
Can you clarify this? What do you mean by "any computation can be mapped onto any physical system"? I take it to be uncontroversial that computations are multiply realizable or can be implemented by different physical substrates but I don't see how that's anywhere near enough to establish the conclusions you want. ------------------------------------------- singularity Archives: http://www.listbox.com/member/archive/11983/=now RSS Feed: http://www.listbox.com/member/archive/rss/11983/ Modify Your Subscription: http://www.listbox.com/member/?member_id=4007604&id_secret=96140713-a54b2b Powered by Listbox: http://www.listbox.com
