Originally Posted by astromark

This over simplification might help or, it might not;
If you could imagine accelerating toward the edge of the known universe you can never reach it. As you go the edge continues to stretch out in front of you. You are part of this universe and can not ever leave that. where you go so does it.
All that is real and of time and matter is part of this universe we are in. We know not of any other. There is nothing you can do that can change that.
I would not expect all if any to agree with this wild assertion of mine. It is based on my own string of thinking which we all know is prone to be wrong.
But, at this point in time it is the conclusion I have come to, and until science puts a clearer image in front of me, will do.