[quote name='Luckless' timestamp='1317770780' post='4869141']
That's a pretty interesting if.
Sort of, if you put to much energy in one place you get a black hole.
[/quote]
Yep, energy, information, all the same stuff.
You can't go smaller due to quantization (uncertainty principle), and you can't go infinitely large due to pesky space time dilation (and, of course, the distinct lack of infinite sources of energy).
We're stuck somewhere in the middle with unavoidably finite information processing.
Of course, the limits we're stuck within by physics are just unfathomably huge by today's standards, so it's not a really big practical problem at the moment.