4 ms·
This is misleading / incomplete. Curviture in the time dimension is not enough to explain gravity. Gravity is caused by curviture in spacetime (4D). It's defini
by desmosxxx 5y ago
This is misleading / incomplete. Curviture in the time dimension is not enough to explain gravity. Gravity is caused by curviture in spacetime (4D). It's definitely not intuitive to think about the time dimension (and so makes for a good youtube video), but this "theory" you're talking about isn't anything that wasn't already known when GR was first introduce.
I'm not sure if you just meant GR and "accounts for some of gravity", but it's a common mistake I've seen people make after some youtube videos on the subject.
See https://physics.stackexchange.com/questions/609217/how-much-of-gravity-is-caused-by-time-dilation https://physics.stackexchange.com/questions/609217/how-much-...
- eurasiantiger 5y agoAren’t there formulations which do away with space-time by treating it as an emergent feature?
- desmosxxx 5y agoYep, you're probably thinking of https://en.wikipedia.org/wiki/Entropic_gravity https://en.wikipedia.org/wiki/Entropic_gravity and/or https://en.wikipedia.org/wiki/ER_%3D_EPR https://en.wikipedia.org/wiki/ER_%3D_EPR, but there are other similar proposals as well. There's enough interesting connections between entanglement and spacetime that it's an interesting area to prod for sure.