3 ms·
Doesn't dark energy do exactly that? 70% of the energy of the universe doesn't seem to want to play by our rules!
by itishappy 3y ago
Doesn't dark energy do exactly that? 70% of the energy of the universe doesn't seem to want to play by our rules!
- digging 3y agoYes, but my understanding is that dark energy doesn't play by the same rules, it's an exception. I certainly can't explain why but also it may not be known exactly why, given dark energy is an unexplained phenomenon.
- cygx 3y agoThe party line is that energy is not conserved at cosmological scales. However, it's more of a semantic question: We can tell you exactly by how much it gets violated (that's basically the first Friedmann equation), and if you prefer, you can attribute the missing energy to the gravitational field. A lot of physicists don't like that approach as it isn't possible to write down a corresponding stress-energy tensor, ie gravitational energy cannot be properly localized.