Well, I read it over, and the only thing that looked suspicious was the
analysis of quantized or non-quantized time and space. I think you've
possibly made the same mistake that you were pointing out in the previous
analysis -- just because space or time may be "continous" doesn't mean that
a quantized travel over them is impossible; e.g. even if space is
continous, I can *still* travel at 5 m/s (quanitizing time into seconds, or
whatever) and get where I'm going.
Other than that, looks good -- mathematics is a model, and a useful one to,
but you've got to make sure that the assumptions it makes are valid in the
situation you wish to use it in.
ERiC