On Monday, September 8, 2025 at 4:52:58 AM UTC-6 John Clark wrote:
On Sun, Sep 7, 2025 at 4:05 PM Alan Grayson <[email protected]> wrote: *>> Here is another video on the twin paradox by the same guy that I recommended before, he explains it in a slightly different way but it's still crystal clear at least in my mind. The guy is really good. * *I wish I was taught the Twin's Paradox this way! <https://www.youtube.com/watch?v=GsMqCHCV5Xc&t=2s>* *> Thanks. I'll view it, but I am satisfied I understand its resolution despite what Brent says. He thinks there is a unique solution, his, but that's not true. AG * *You really should look at that video because it shows a way to state the twin "paradox" such that no acceleration is involved, but even in that case it can be resolved and he demonstrates it's not a paradox at all, it's just a strange situation. People call it a "paradox" because, although they remember time dilation and length contraction, they forget a third equally important thing special relativity tells us about the universe, the impossibility of absolute simultaneously except for the case of two events occurring at the same place and at the same time. So even if you can run faster than me I can still beat you to the finish line if I hear the starting gun before you do.* *I'm not sure the impossibility of absolute simultaneity solves the problem, if it's caused by the fallacious assumption of symmetry. I haven't yet viewed the video you just posted, but I will. AG * *John K Clark See what's on my new list at Extropolis <https://groups.google.com/g/extropolis>* kf9 -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion visit https://groups.google.com/d/msgid/everything-list/66d92e7e-2d7a-4400-a137-73514bcdc8f9n%40googlegroups.com.
