Em 09/04/2012 02:39, Darren New escreveu:
> We're confusing two things here. One is that real computers can perform
> computations that TMs can't, because TM's don't have cameras,
> microphones, etc.

Those are still tapes, minus time.  If you recorded all user input from 
any device and fed it to a TM, it'd still work the same.  Interaction 
means the TM waiting for more tape...

> One TM can't program another TM at all, because a TM
> can only write to its own tape.

I'm not sure I'm following, but this actually reminded me of programs 
that output their own source code.  And virus...

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