Comment on Do straight lines and flat planes exist in nature?
Paragone@lemmy.world 7 months ago
maybe somebody else pointed this out:
Light ALWAYS travels in its idea of a straight-line.
Always.
It doesn’t matter whether it is bent by gravity or refraction, from its perspective, it kept going straight.
Only an “outside viewer” sees any non-straight-line-ness being done, but the outside-viewer isn’t seeing the curved-space or the curved-refractive-index that the photon saw.
Klear@lemmy.world 7 months ago
Well, kinda, but the line the photon is contracted in its POV into a point. Whatever destination is has, it’s already there as far as it’s concerned. It doesn’t experience time given that it’s moving at the speed of light.