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In a new paper, a group of physicists claims to have confirmed the existence of “negative time.” I had never heard of this, but I had a look at the paper. And I think I have figured it out.
Paper: https://arxiv.org/abs/2409.
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This result challenges our fundamental intuition about how time flows, but that is what makes physics beautiful. The fact that photons can exhibit negative group delay in a transparent medium has been theoretically predicted for a while, but seeing it confirmed experimentally with such precision is exciting. It reminds me of how AI image generators can now create visuals that seem to defy conventional spatial constraints. Both fields are pushing boundaries of what we thought was possible.
The idea of ´negative time´ is doubtful/wrong
Because every object on earth is transported by its rotation, is moved by the earth around the sun — and the sun-system is part of a rotating galaxy in an expanding universe
All these movements are an essential property of every object — and to stop or even reverse time does mean that all these dynamic movements have to be stopped or even reversed too.
This is not possible
Physicists have not delivered a definition for TIME up to now!
Therefore all statements about TIME are of very poor quality.
And as long we do not know what TIME is — we can not measure TIME
Bishop Augustine distinguished in CONFESSIONS (book 11, chap. 13–29) already 1600 year ago — three different types: the a) divine, b) physical, c) human time / time-perception.
When we want to understand what TIME is, then we have to discuss these three types of TIME — each seperately