3 ms·
> those photons hit infinity What does that mean "hit infinity"? I would think that could only happen after an infinite amount of time, in other words never.
by galaxyLogic 6y ago
> those photons hit infinity
What does that mean "hit infinity"? I would think that could only happen after an infinite amount of time, in other words never.
- aeternum 6y agoIt is only from the reference frame of some physical observer inside the universe that it takes time for them to reach infinity. From the reference frame of a photon, not only does it instantly arrive at infinity, but infinity and its original position one in the same since length is contracted to zero.
- galaxyLogic 6y agoSo photons are at infinity already?
- aeternum 6y agoYes, it can be looked at that way or that time & distance do not exist for photons.