3 ms·
> Relativistic motion is actual time dilation and not merely your perception of someone else's motion. What distinction are you drawing? What is the differenc
by hgsgm 4y ago
> Relativistic motion is actual time dilation and not merely your perception of someone else's motion.
What distinction are you drawing?
What is the difference between "actual" and "what [every] observer observes?
Part of the concept of relativity is that there is no preferred clock. That's why it is called "relativity".
- ben_w 4y agoAlice, Bob, initially at rest, Bob accelerates to relative motion of 0.5c, turns around, returns, decelerates to rest with respect to Alice, both agree Bob experienced less time. No clock is preferred, but the dilation is real. That the Alcubierre metric is supposed to avoid dilation made me ask ages ago if it also avoided the usual paradoxes, but everyone I asked insisted it didn't help at all with that.