https://hackerpaper.kaipfister.de/p/1501.07322/Collected HN comments and submissions linking this paper.enMon, 02 Nov 2026 11:16:22 GMThttps://news.ycombinator.com/item?id=35726136urn:hackerpapers:mention:1501.07322:35726136Thu, 27 Apr 2023 10:51:54 GMT<p>Some reading on the universality of free fall version of the strong equivalent principle, tested in a manifestly relativistic regime: &quot;Even Phenomenally Dense Neutron Stars Fall like a Feather -- Einstein Gets It Right Again&quot; https://public.nrao.edu/news/neutron-stars-fall/ More detail, Archibald et al. 2018, &quot;Testing the universality of free fall by tracking a pulsar in a stellar triple system&quot; (Nature volume 559, pages 73--76 (2018)) preprint: &lt;https://arxiv.org/abs/1807.02059&gt;. If universality of free fall fails, so does the single metric / purely geometrical theory of General Relativity.…</p><p><a href="https://hackerpaper.kaipfister.de/p/1501.07322/">Paper and discussion history</a>. A mention is not an endorsement.</p>gr-qc