I have seen it tossed about and I think it is generally accepted, that the universe began as a single dimensional event, at some point gaining a second dimension, then finally a third. Was time present during the entire 'event' as a co-existing diemnsion, fully developed and functional as it is today? Or did it come along at some later point in the development of the universe? Only after the three space dimensions were existent? If it was present at the 'beginning' then wouldn't the universe have been 2 dimensional? Time and 1 space dimension? When a dimension 'appears', as when the 2nd spatial dimension came into existence, did it sweep the entire universe as a wave? Happen simultaneously throughout the universe? Or did it only occur at locations where the temperature had dropped to some magical trigger value? And what of time today (4th dimension)? Is it possible that time is not currently fully what it will become? That it is in the process of 'becoming' a 4th dimension but currently isn't fully manifesting it's properties? And if time was not existent until some later point in the development/expansion of the universe, (or is not yet fully manfiest), how would that affect the big picture of the big bang or the future of the universe?