jhcrue

You know how currently the universe is the largest thing we know of? It supposedly started from a huge mass of energy exploding at one single point like a grenade and creating everything we know of today. We haven't been to the edge of the universe or even the edge of our galaxy and it raises the question as to what lies beyond the universe. Many assume it would just be empty space of nothingness forever, but I don't think the void of 'nothingness' is true. Say a grenade goes off in a test room. The fragments of shrapnel will go off in all directions. Now remove gravity and friction. Our universe is basically the grenade in the test room, except the test room is much much bigger and it is entirely possible to have more than one grenade go off at the same time, or different times, creating life as we know it today. Why couldn't we have more than one universe? Ours happened, whats stopping another from happening somewhere else far far away? I am mostly just looking for opinions on the matter and information to expand my knowledge of the subject.