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Quote by: butterbut  If it has limits then what is after it? |
If the universe is always expanding then we may never find out. Lacking the ability to travel faster than the expansion.
If the expansion slows or stops at a certain point then what could have caused that? and does that mean its going to start getting smaller?
Mostly its nothing we have to worry about, by the time the universe could shrink humans will be extinct or evolved beyond anything we know today.