> Once recorded, does a random sequence cease to be random as can now be
> repeated at will, and is surely now - by definition - deterministic? Can
> randomness be quantified?  Any mathematicians out there care to enlighten
> me?

For a sequence to be random, all that's really required is that each entry
in the sequence is completely independant of the preceeding entries. Now, if
I take a finite-length sequence of random numbers, and then play this
sequence end-to-end repeatedly, then the longer sequence that I end up with
no longer obeys this requirement.

The easiest way to consider this is from the point of view of an "observer"
(eg. a PIC), who runs through the list one entry at a time. As long as they
run through the list only once, then the observer is unable to predict any
future entries, because they're independant of the preceeding ones.  If the
list has been precomputed, then from *our* point of view, yes, it's
deterministic, but only because we have knowledge of the whole list.

Cheers,
Ben