> Many mathematicians manipulate pi with exact precision 
> in their calculations. 

Really?  So what is the exact circumference of a circle with 
a diameter of 2 inches?

> Whilst a continuum may not exist in itself, discrete 
> CA models do not capture everything that lies in the
> domain of discrete describability. I've had a lengthy 
> and exhausting argument with Hal Ruhl over this issue 
> - I don't really feel like repeating it.

Ok, but I must say, I disagree.  I see a lengthy discussion 
titled, "Computing Randomness".  Is that the one?  I'll look 
it over.


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