Essays, experiments and things I build. Written mostly after 1 a.m.https://field.rnuxay.xyz/https://field.rnuxay.xyz/writing/time-and-gravity/https://field.rnuxay.xyz/writing/time-and-gravity/Travelling to the future is allowed by the rules; travelling back probably is not. From the constancy of the speed of light through gravitational time dilation to wormholes, the grandfather paradox and the closed loop in Dark — ending on the question of what time actually is.Fri, 10 Apr 2026 00:00:00 GMThttps://field.rnuxay.xyz/writing/why-i-write/https://field.rnuxay.xyz/writing/why-i-write/Being able to explain something clearly, to someone else, is the only real proof that you understand it. Writing here is partly a record, partly a way to stay off the feed and keep producing thought instead of consuming it.Fri, 10 Apr 2026 00:00:00 GMT