Quote:
Originally Posted by bartman
Carl, what I was trying to say is if "The void we're talking about is the complete absence of all of this...matter, spacetime etc etc.", wouldn't that be an area ( cant think of a better word as there wouldn't be an 'area') that is similar to beyond the boundary of our universe and/or before the BB?
However just reading back.....Alex said that .. "I recall one void was discovered that was some half a billion lights years across (maybe larger) and without being specific as to size we can at least say they are huge."
therefore if it has a dimension ie size, then it isn't a Void!
It might be void of matter but not spacetime.... surely?
Bartman
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It's like I said...if it were truly a void, there would even be an absence of the concept of a void. The mere thought of a void is the presence of something. Therefore, it isn't a void. The universe unfolded from a higher dimensional entity and the precise moment of that event was the BB. There was never an absence of anything. The presence of a trigger for the BB, even if it was a random fluctuation of an abstract mathematical entity/quantum field, means there is something there.
In those voids, even if you did take out all the matter from the area, the fact that spacetime is present means there will be matter there anyway. The quantum fluctuations of spacetime itself generates virtual particles from the energy present. Remember, energy and matter are just two aspects of the same thing. Opposite sides of the same coin, so to speak.