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It’s always crazy to me how empty most of space is, and that yet despite that gravity is strong enough on large timescales to pull a lot of stuff together. Then
by Ancalagon 2y ago
It’s always crazy to me how empty most of space is, and that yet despite that gravity is strong enough on large timescales to pull a lot of stuff together. Then I get concerned as to why EVERYTHING wasn’t pulled together and it’s literally just this little bit of angular momentum conserved across vast distances and added together from all these little particles that is keeping everything apart just enough for us to exist.
- whamlastxmas 2y agoSomething to do with the universe expanding faster than gravity could ever hope to pull things together right?
- nojvek 2y agoAlso we don’t know why the universe is expanding. Not just expanding but accelerating. Why is spacetime itself stretching and what is doing it? Yeah yeah dark matter blah blah, but it’s not a concise enough answer.
- decremental 2y ago[dead]
- david-gpu 2y agoDark matter doesn't make the universe expand. It is massive, and thus it brings things together. Dark energy, on the other hand, is the postulated cause of the expansion of the universe. Edit: not a Physicist!
- Aerroon 2y agoWell, the other forces have something to say about it too. If you compress stuff hard enough then the other forces will violently blow it apart.
- Ancalagon 2y agoNah gravity would win (see: black holes)