in one documentary i saw that; at the very begining the universe was just a concentrated point of energy with only 1 fundamental force which was made of combination of all 4 fundamental forces; gravity, electromagnetic, weak and strong....Universe started by a big bang which was initiated when gravity, i.e. one of the fundamental force splitup from the other 3 forces. ok thats how is started but how was the energy there in the first place...could it have been; 1)that there was once another universe that ended up with everything crunching up in a single dot and the cycle of creation started all over again? 2)may be our universe was created when extreamly high amount of energy(mass) in some other dimention crunched up in a point then vahished from that dimention when it exploded and created our universe and dimention. this reason would mean that blackholes lead to new dimentions and start of new universes. well those 2 are the only 2 possible possibities that i could think of 4 now....BUT what do u think?