Quote Originally Posted by Khedrac View Post
Actually you can pinpoint the location in 4-space where the big bang occurred (assuming that the 4th dimension is time). The time co-ordinate is <insert current best calculated age of universe>.

The space co-ordinates are "everywhere".

This is what is meant by the expansion of the universe - there is no "outside" to measure it against (or if there is, none of the spacial co-ordinate systems we can use inside have any meaning there). Every point in the universe came from the big bang.

This means that your question isn't meaningful - there isn't an outside (as we currently understand it) to observe. You also cannot go back before the beginning because although you can calculate a theoretical time postion, there's no reference to observe it passing - time itself is also meaningless before the big bang.

If we suppose that there was something before the big bang, and than time and spacial coordinates have meaning, they still don't relate to those we use inside the universe (or at least we cannot relate them) so the best answer becomes "possibly". An equivalent question is "if we postulate the ability to see gravity in the same way we see light, would the gravity of the earth look blue?" It's a meaningless because we don't have the referents to answer it.
I figured someone would say something like this.

Alternatively, right now the observable universe is something like 90 billion ly wide. Suppose you could teleport 90 billion ly in a given direction. You'd either end up in another bubble, or outside of any bubbles, or maybe still in our bubble. As asda fasda mentioned, in the first case void might have different properties. In the second case... I dunno.