Thanks, I had missed that note by Milgrom. With JWST it seems we might be able to get closer to an answer[1]. Sterile neutrinos[2] seemed like an obvious candi

Thanks, I had missed that note by Milgrom. With JWST it seems we might be able to get closer to an answer[1]. Sterile neutrinos[2] seemed like an obvious candidate, but we'll see how that pans out. Current searches aren't positive[3][4], but I suppose it's far to early to call it quits on that given the theoretical motivation. [1]: https://arxiv.org/abs/2302.00030 https://arxiv.org/abs/2302.00030 [2]: https://arxiv.org/abs/2106.05913 https://arxiv.org/abs/2106.05913 [3]: https://phys.org/news/2022-11-analysis-closer-sterile-neutrino.html https://phys.org/news/2022-11-analysis-closer-sterile-neutri... [4]: https://phys.org/news/2023-01-results-stereo-sterile-neutrino-hypothesis.html https://phys.org/news/2023-01-results-stereo-sterile-neutrin...