ZealousidealClub4119 t1_jcnhbmz wrote
Reply to comment by Cutecumber_Roll in Where do photons go if they've been emitted but are destined to never be absorbed, and would these photons traveling ad infinitum define the edge of the universe (even if space itself were still larger)? by mysteryofthefieryeye
This is one of the things that periodically blows my mind: look up, and that photon from that galaxy has traveled for millions of years and for a jiffy, and just here its wavefunction has collapsed on one cell in my retina.
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