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I'm not a physicist, but my laymans understanding is that it's fairly easy to account for some cherry-picked observations with modified gravity, but to account
by eloff 9y ago
I'm not a physicist, but my laymans understanding is that it's fairly easy to account for some cherry-picked observations with modified gravity, but to account for all of them requires something at least as contrived as dark matter. So the evidence is still pointing in that direction for now.
- dnautics 9y agoKeep in mind that each Galaxy must have its own curve-fit distribution of dark matter whereas alternative gravity theories fit all galaxies using a single free parameter, which makes it en face a more appealing model.
- eloff 9y agoPlus to me dark matter feels like a hack to make the math work. It feels inelegant. But that doesn't make it wrong - nature doesn't care what I like or don't like.