In the movie, the Nexus lead to a place where time has no meaning, and it consisted of memories and desires in one's mind, similar to a dream. Hence a false reality. However, it is also feasible that a space warp can lead to a physically existing realm in space. The question is, when can we do that? The theories are there but what is missing? Or, have we really found a "star gate" that can take us to other regions? This is all a mystery to the common "Q" and the common "GiGi". One day we will have ourselves in space, for the time being, we will just use test animals I guess.

Q, just came to me, that is a character in Star Trek: The next generation. Interesting that it popped in my head without even thinking at first, then I remembered the second part. My mind works in nice ways I think.
Anyways, what is the point of this post? Nothing really, just some thoughts beyond space and time.