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Fri 25 Feb, 2011 10:13 pm
I would like to know how all the mass in the universe can fit into a single point the size of an atom before the big bang. if one atom is the size of an atom, how can you fit the whole universe in it?
@ryoung,
Since most of a "normal atom" is empty space you can understanding one form of collapse. You can understand another by considering "mass" as interchangeable with "energy" from Einstein's equation. But the main point is that "pictures" fail in abstract mathematical models since our pictures are based on "normal" relationships of human observers in 3D space +time.