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AbstractDreamer

Simultaneity, and the chronon

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What evidence is there to support the suggestion that time is continuous and not granular, or vice versa, or both, or neither, or something else?

What evidence is there to suggest that relative-frame-of-referenced simultaneous events are a reality?  How do we measure two simultaneous events and declare they are simultaneous if all observables and measurements are ultimately limited by HUP?  We may synchronise two atomic clocks, but how do we know they are synchronised without measuring them and how do we know after our measurement they are still synchronised?  How can we be certain at the time of measuring two events, that the clocks were synchronised?

In a volume of space with no observations or decoherence, must time still exist?

In a volume of space with two things each observing the other, is it impossible that time ticks sequentially rather than simultaneously for both of them?

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We go where theory takes us, when it has experimental confirmation. What we have that works is time as a continuum.

You can synchronize/compare clocks before and compare after. As long as they agree within the required precision, you would say events were coincident. The limit of the HUP only matters if you are also measuring a frequency or energy at the same time.

What “simultaneous event in relative frame” experiment did you have in mind?

 

 

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7 hours ago, AbstractDreamer said:

In a volume of space with no observations or decoherence, must time still exist?

You cannot separate time and space, they always exist together as spacetime, regardless of whether the region in question is a vacuum or not.

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