Light Can Travel Backward in Time (Sort Of) – Scientific American

Re:Light Can Travel Backward in Time (Sort Of) – Scientific ... by chowells on Thursday December 07, 2023 @12:35PM (#38559271)

> reality is still asymetric in the temporal dimension

That's an interesting claim. Do you have any evidence of it?

Oh, wait. Do you actually believe time passes? You're going to need to start by proving we're not in a block universe, then.

As far as I know, there is no such thing as an experiment that can disprove either assertion. As such, they're more claims of faith than claims about reality.

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Re:Light Can Travel Backward in Time (Sort Of) – Scientific ... by Nthringas on Thursday December 07, 2023 @04:42PM (#38562190)

my argument is more philosophical than scientific, so I can offer no evidence

time is asymmetric BY definition. if time weren't asymmetric I would have to call it space instead. (seems like I'm using asymmetry and monotonicity as synonyms)

in my definition, passing is all time can ever do, and it must do it only in the 'same direction'.

finally, in my view it is space which enables backwards and forwards motion.

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Re:Light Can Travel Backward in Time (Sort Of) – Scientific ... by PrimeMcFly on Friday December 08, 2023 @02:59AM (#38566471)

> time is asymmetric BY definition. if time weren't asymmetric I would have to call it space instead.

I don't follow you here. If time were not asymmetric it wouldn't suddenly just be space. What are you actually claiming here?

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