https://hackerpaper.kaipfister.de/p/gr-qc_9510052/Collected HN comments and submissions linking this paper.enMon, 02 Nov 2026 11:16:22 GMThttps://news.ycombinator.com/item?id=20744008urn:hackerpapers:mention:gr-qc_9510052:20744008Tue, 20 Aug 2019 05:09:29 GMT<p>To me, General Relativity has some pleasing qualities: it&#x27;s mathematically complete, and it&#x27;s very flexible. As to the Einstein Field Equations (EFEs) themselves, the aesthetically pleasing quality is the terse notation brought about by the Einstein summation convention, abstraction into the Einstein tensor G_{\mu\nu}, the stress-energy-momentum tensor T_{\mu\nu} and other objects, and so forth (it&#x27;s even shorter with geometrized units c = G = 1, ignoring the cosmological constant (say if one relies on thin shells and junctions[1]), \pi = 1, and/or 0 on the RHS). This terseness can hide…</p><p><a href="https://hackerpaper.kaipfister.de/p/gr-qc_9510052/">Paper and discussion history</a>. A mention is not an endorsement.</p>gr-qc