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Time is a dimension, but not like space

(bigthink.com)
171 points belter | 1 comments | 17 Oct 24 15:29 UTC | HN request time: 0s | source
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defanor ◴[20 Oct 24 18:35 UTC] No.41897484[source]▶
> Your motion through the x dimension in space, for example, is completely independent of your motion through the other two (y and z) spatial dimensions.

If one considers motion at (or near) the speed of light, that speed would have to be shared among space dimensions, just as with the time dimension. So not that independent.

replies(1): >>41897521 #
123pie123 ◴[20 Oct 24 18:40 UTC] No.41897521[source]▶
i've never really 'properly' understood spacetime - can you expand on your comment?

why would going v fast in the x direction affect y and z?

replies(4): >>41897570 #>>41897615 #>>41897644 #>>41898100 #
1. ◴[20 Oct 24 18:53 UTC] No.41897615[source]▶