This is a question that really affects me. Where was I for the billion years of infinity before I came into what I know as my life? It's very bizarre. As far as I know, the universe existed for a very long time before I came into existence. Why is it that I don't have any recollection of anything during all that time of existence?
A big thing to consider about this is whether or not that time actually existed. I mean that time is a very peculiar thing. We all sense it -at least we think we sense it. But there is nothing but a never ending now. There is only the "now" of now.
Ok, the really big question is " When I die, will I go back to that same place I was in for the billion years that I don't remember"?