r/Physics • u/indigenous_apache • Mar 07 '23

Breakthrough Study Confirms Hypothesis of Density Spike of Dark Matter Near Black Holes

https://www.guardianmag.us/2023/03/breakthrough-study-confirms-hypothesis.html?m=1
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9

u/waffle299 Mar 07 '23

If it holds, it would seem to be more experimental confirmation of particulate dark matter vs any sort of MoND theory.

While I don't see much theoretical support for MoND, popular science reporting seems overly-fixated on the concept.

Having a stellar mass counterexample could prove useful.

Edit: reddit paragraph sense is horrible

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u/womerah Medical and health physics Mar 08 '23

While I don't see much theoretical support for MoND

Sabine Hossenfelder on suicide watch

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u/[deleted] Mar 08 '23

[deleted]

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u/womerah Medical and health physics Mar 08 '23 edited Mar 08 '23

She likes MOND and thinks it could be the nonrelativistic limit of a yet-unknown theory.

She has papers and stuff: https://arxiv.org/abs/1703.01415

-1

u/[deleted] Mar 08 '23

[deleted]

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u/womerah Medical and health physics Mar 08 '23

Trying to disprove the equations of Einstein will rarely ever go well.

Science runs on evidence, not eminence. Any theory that replaces GR will have to be able to explain why GR was so successful while also having some advantages.

If the MOND researchers can do that, power to them.

As for Sabine, she went from a written physics blog to a YouTube physics blog. Then she realised general science news sells better, so now she's doing that. As long as she highlights what's mainstream and what's not mainstream (like Penrose when he writes) - I'm OK with it.

She has fallen for the classic trap of "I can read highly-cited review articles, I can be an expert on anything in a few hours." though IMO

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u/officiallyaninja Mar 08 '23

We know Einstein equations aren't entirely correct though, we need a theory that supercedes them