Re:Ask HN: What has melted your brain recently?
by iroddis on Thursday June 16, 2022 @10:37AM
(#31766563)
Possibly this is me misunderstanding things, but that all things move at a constant velocity (speed of light) through spacetime. So I’m moving at the same speed as light, it’s just that a lot of my velocity is in the time dimension, where as light’s velocity is fully in the dimensions of space (and zero in time).
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Re:Ask HN: What has melted your brain recently?
by Borrible on Thursday June 16, 2022 @01:00PM
(#31768380)
Right.
"You can’t go faster than the speed of light, because you can’t go slower than the speed of light. You are always going the speed of light through spacetime. If you use some of your speed to go through space then there is less speed through time." Lewis Carroll Epstein
Re:Ask HN: What has melted your brain recently?
by tagami on Thursday June 16, 2022 @12:35PM
(#31768048)
I'll accept my ignorance here, but there has to be some time element to light otherwise it would have infinite speed.
Re:Ask HN: What has melted your brain recently?
by Viliam1234 on Thursday June 16, 2022 @07:59PM
(#31772454)
Relativity: from our perspective, light moves at 300 000 km/s; from light's own perspective, it actually moves at infinite speed.
Which by the way is a reason why you can never reach the speed of light; because it would mean reaching (from your own perspective) an infinite speed, and you can't do that by burning a finite amount of fuel.