Yeah thats a good answer Mr Mixx.
My teacher when i wa in school told me many times that the universe is infinate and lasts forever, and I said, "There must be an end somewhere, everything has to have an end". He just said "no, it is infinite, it is growing and growing by the second"
I don't get that, though it is because of the big bang theroy is happening scientists say, and I believe them
They say in a few billion years (about the same time) it could either keep growing, or could fall back on itself, and kill everything, and then all the energy wil gather up again and *boom* another big bang.
Thinking about it this way, the universe could have been around billuion and billions and billions of years, even before the last explosion, or the one before that, replacing life again and again and again. Weird huh?