https://hackerpaper.kaipfister.de/p/1401.2026/Collected HN comments and submissions linking this paper.enMon, 02 Nov 2026 11:16:22 GMThttps://news.ycombinator.com/item?id=18860753urn:hackerpapers:mention:1401.2026:18860753Tue, 08 Jan 2019 23:16:11 GMT<p>&gt; underlying medium that allows forces to be propagated General Relativity is a local theory concerned with the mechanisms that generate the metric, the geodesics implied by the metric, and the coupling of objects to those geodesics. The relevant forces are those which accelerate objects into non-geodesic motion (or boost them from one geodesic to another). Those are local[1] as well: electromagnetism and the nuclear interactions. There&#x27;s nothing like a luminiferous aether or underlying medium in the Standard Model, even if you look funnily at the gauge bosons -- they obey Lorentz covariance.…</p><p><a href="https://hackerpaper.kaipfister.de/p/1401.2026/">Paper and discussion history</a>. A mention is not an endorsement.</p>gr-qc