https://hackerpaper.kaipfister.de/p/2412.08026/Collected HN comments and submissions linking this paper.enMon, 02 Nov 2026 11:16:22 GMThttps://news.ycombinator.com/item?id=42588665urn:hackerpapers:mention:2412.08026:42588665Fri, 03 Jan 2025 19:25:12 GMT<p>Simulations require supercomputers for doing large scale, detailed calculations, but simple situations can be solved completely analytically. For example, gravitational time dilation can be calculated somewhat simply for a central gravitational potential: https://en.wikipedia.org/wiki/Gravitational_time_dilation#Ou... General Relativity is incredibly math heavy but fundamentally the numerical methods involved are standard methods for differential equations. The hard part is going from the math to a solvable form. See https://arxiv.org/pdf/2008.12931 for a broad overview. This will of course…</p><p><a href="https://hackerpaper.kaipfister.de/p/2412.08026/">Paper and discussion history</a>. A mention is not an endorsement.</p>gr-qc