On 9/8/2025 11:19 AM, Alan Grayson wrote:


On Monday, September 8, 2025 at 5:06:36 AM UTC-6 John Clark wrote:

    On Mon, Sep 8, 2025 at 7:00 AM Alan Grayson <[email protected]>
    wrote:

        /> I'm not sure the impossibility of absolute simultaneity
        solves the problem,/

    *
    *
    *Watch the video!If you follow what he does step-by-step you will
    see that he is right. It's not difficult. *


*I'll definitely watch it, very soon, but a-priori the impossibility of absolute simultaneity can't solve the paradox because it's not its cause. Can you succinctly state the cause of the paradox? It's the application of time dilation in SR, under the mistaken assumption that the twins take symmetric paths; that their situations are symmetric. This results in the situation that when they meet and compare clock readings, each concludes the other is younger. *
No that's wrong.  The stay at home twin has a clock that indicates a longer interval than the traveling twins clock.   They agree that the traveling twin is younger.

Brent

*Do you agree that I've correctly stated the paradox? AG*


    *John K Clark    See what's on my new list at Extropolis
    <https://groups.google.com/g/extropolis>*
    *
    *

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