OT - Physics Question on Anti-Matter

[shinigami]

Suicide Junkie said:

How so? Infinite density does not mean infinite energy.

Now, if the universe is infinite in extent and as homogenous as it looks from here, then indeed there would be infinite energy in it.
However you only have access to the observable universe, which is a finite volume of space, with a finite amount of stuff in it.

I think that was what I was saying, finite universe means finite energy.

For the universe to be infinite wouldn't that mean that somewhere in it energy and matter are being created or added to it? Seeing as physics, as we understand them, can only go back as far as a few milliseconds after the big bang and that time did not exist beforehand then it is possible that the BB is still happening and creating the additional energy for an infinite universe. Very esoteric theory that's hell to wrap my head around!

I think that in man's quest for infinite energy we'll find that it truly doesn't exist (barring extra-dimensional sources) in the strictest sense. However, from our limited point of view (ie, short lifespan compared to the universe,) we'll find plenty of sources that seem to be infinite.
What would you call that, practical infiniteness?

Anybody remember the space shuttle tether experiment? Compare that with some of Tesla's work and we might have an outstanding source of renewable energy. As for harnessing it....