3 ms·
Good points, this is getting complicated. Aren't you also increasing the mass of the Universe? You could add enough mass to halt the expansion.
by woofyman 10y ago
Good points, this is getting complicated.
Aren't you also increasing the mass of the Universe? You could add enough mass to halt the expansion.
- mark-r 10y agoThat's a very good point as well. You probably couldn't move enough matter to make a noticeable difference to the Universe as a whole, but it does point to a violation of some kind of equilibrium. I think it's just easier to assume time travel is impossible.