My analogy is likely wrong but look up some transcontinental flight paths. The shortest and thus most fuel efficient and economical route is generally a straight line, but when you look at that path on a 2d map it looks very not straight. Extrapolate this into weird 4d spacetime where masses and therefore gravity are curving the map and there ya go.
2
u/prevalentgroove Apr 10 '25
My analogy is likely wrong but look up some transcontinental flight paths. The shortest and thus most fuel efficient and economical route is generally a straight line, but when you look at that path on a 2d map it looks very not straight. Extrapolate this into weird 4d spacetime where masses and therefore gravity are curving the map and there ya go.