>> No. The tape isn't a standard Turing tape because it's >> infinitely long. :) > > ?

You're presuming the Universe contains finite data. Most cosmological evidence suggests that the Universe is flat and unbounded, which implies it would be infinite in size. If space is not quantized (which would be difficult to handle mathematically, anyway), then there's an infinite amount of information even in a finite universe. > He could dovetail. (The standard way to emulate parallelism in a > linear way). Of course. But this still only works on finite data. I think you're confusing "can emulate with a Turing machine" with "is computable". Everything that is computable /in finite time and space/ can be emulated on a Turing machine (if the Church-Turing thesis is true). But infinite data sets cannot be handled directly on a Turing machine. There's no model for handling infinite data, that I know of anyway. Anna --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Everything List" group. To post to this group, send email to [EMAIL PROTECTED] 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 -~----------~----~----~----~------~----~------~--~---