clipka wrote:
> but I wouldn't attribute this to the /tape/ being 
> infinite vs. just "unbounded", but rather the rules in this case 
> allowing to /access/ an infinitely large number of cells in a /single/ 
> step.

But *that* is *exactly* the difference between an infinite tape and an 
unbounded one. An tape doesn't have to be infinite if you can't access an 
infinite number of cells in a finite number of steps. That's exactly 100% 
the entire point of the distinction.

> You still haven't managed to come up with any, from what I see.

I'll leave you to look it up in the textbooks, then, if you can't 
extrapolate from that to a machine impossible to simulate.

-- 
   Darren New, San Diego CA, USA (PST)
   I ordered stamps from Zazzle that read "Place Stamp Here".

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