Under the rubric keep going as it's going great.

Sabine Hossenfelder, "Is time travel possible?",
2023-10-14 on YouTube:
<https://youtu.be/4ICIObFtWjM?si=13UU3byE9YTL5MUR&t=52>

No, PROPER TIME is *absolute*! It *does* pass for every
observer/clock at the same rate, i.e. in their own frame.

(Here is the 101 on Einsteinian relativity: <https://jp-diegidio.github.io/STUDY.Physics.SpecialRelativity/InertialFrames/App>
Try and understand the role of proper time.)

How can an entire community of physicists (isn't it?)
ever get such a fundamental notion so blatantly upside
down is the real "mystery" here.

Julio

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On Saturday, October 14, 2023 at 11:16:13 AM UTC-4, Julio Di Egidio wrote:

Under the rubric keep going as it's going great.

Sabine Hossenfelder, "Is time travel possible?",
2023-10-14 on YouTube: <https://youtu.be/4ICIObFtWjM?si=13UU3byE9YTL5MUR&t=52>

No, PROPER TIME is *absolute*! It *does* pass for every
observer/clock at the same rate, i.e. in their own frame.

(Here is the 101 on Einsteinian relativity: <https://jp-diegidio.github.io/STUDY.Physics.SpecialRelativity/InertialFrames/App>
Try and understand the role of proper time.)

How can an entire community of physicists (isn't it?)
ever get such a fundamental notion so blatantly upside
down is the real "mystery" here.

Julio

You misunderstand proper time and thus you mislabel it as *absolute*!
Read your own post: "i.e. in their own frame."
You have to question your own assumptions when you cannot convince
experts in the field of your views. Either your presentations are lacking
or your conclusion are wrong.

There is no "mystery" regarding proper time or in physicists understanding of it.

Enjoy,
Ed

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