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Time is a dimension, but not like space

(bigthink.com)
171 points belter | 2 comments | 17 Oct 24 15:29 UTC | HN request time: 0.465s | source
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IgorPartola ◴[20 Oct 24 14:13 UTC] No.41895504[source]▶
If I understand correctly, we experience time at nearly the speed of light. What I mean by that is that any particle’s 4 dimensional velocity vector has the magnitude of c which means that if it is mostly at rest in space then time has to be the major contributing factor but the magnitude of the vector. On the other hand something like a photon experiences to time at all as it moves through the 3 space dimensions at a total of c.
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1. lacy_tinpot ◴[20 Oct 24 19:00 UTC] No.41897669[source]▶
You can't "experience" time. Experience is memory and memory is the only thing you can "experience". Whether that memory has anything to do with time as such is debatable. Personally I'd say no.
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2. soulofmischief ◴[20 Oct 24 19:31 UTC] No.41897880[source]▶
You're thinking of subjective experience, conscious perception of time. OP is referring more generally to the local speed of causality in a system at rest.