if one believes in the big bang then there must be a limit to our universe out there on the fringes and if i recall correctly, it was mapped or found a few years ago (the background "bang" of the big bang) ...or what some scientists think is the edge of the expansion. but if you are of the christian-judean background, you might think of it as a neverending or a universal universe. but then you would have to block any chance of there being alternative universes as there wouldn't be enough room left, being that this universe is universal...uni, latin for one and versal latin for...ummm...vessel...yeah, that's it vessel. uni-vessal...one ship. so there ya go...

my brain hurts now...but one more thought on this before i medicate...i just can not fathom the fact that we are on the one and only plane in the one and only one universe...let alone the 'fact' that eternity is decided upon solely by our belief's during this short life period we're currently experiencing...