I am still somewhat confused about space expanding without matter expanding and I wanted to ask a simple question.
If matter has not expanded along with space ( even a little bit ) then when the universe was the size of our solar system what was the deal? I mean obviously if the universe was the saize of our solar system I dont think that the earth and the sun could take up the same amount of space that it takes up now.
Was the space-time of the universe exapanded only in non-graviational points ??? I couldnt picture there being much non-gravitational space then.
Or was energy and matter much smaller then? I realize that it would be much hotter ...