There’s no such thing as time
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Or at least, its is emergent rather than fundamental – as time works in different ways in relativity and quantum theory. In relativity, the passage of time is different for people moving relative to one another, so there is no absolute measure of time.
In quantum theory, it’s even less well defined: time doesn’t even figure as something that gets measured. Quantum theory might be able to tell you where an electron is, but it can’t tell you how long it’s been there.
One radical solution to the problem is to view time as a concept that humans have made up. If it doesn’t play a fundamental, well-defined role in the processes of the universe, maybe our theories can do without it altogether.
Time doesn’t exist to photons (or anything that goes at the speed of light) – to them everything happens at once. So sure, in some cases and to some things, time doesn’t exist, good point – weird sounding idea.
Interesting, as Einstein once said: “Time and space are modes by which we think, and not conditions in which we live”
Time doesn’t really exist, its just an emergent phenomenon we believe we percieve – according to Julian Barbour. Well, that’s his solution to the problem of time in physics and cosmology. Yep it’s as simply stated as it is radical.