this post was submitted on 24 Jan 2025
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Science Memes

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[–] wolframhydroxide@sh.itjust.works 2 points 1 week ago* (last edited 1 week ago)

Since an observer traveling through space at the speed of light experiences no time from the beginning of their journey until they decelerate (since their 4-velocity vector has non-zero values only in the 3 dimensions of space), photons don't just arrive precisely when they mean to, from the moment they are emitted, they have already arrived.