"Physicists have identified a set of fundamental symmetries in nature. The three most important symmetries are: charge (if you flip the charges of all the particles involved in an interaction to their opposite charge, you’ll get the same interaction); parity (if you look at the mirror image of an interaction, you get the same result); and time (if you run an interaction backward in time, it looks the same).

Physical interactions obey most of these symmetries most of the time, which means that there are sometimes violations. But physicists have never observed a violation of a combination of all three symmetries at the same time. If you take every single interaction observed in nature and flip the charges, take the mirror image, and run it backward in time, those interactions behave exactly the same.

This fundamental symmetry is given a name: CPT symmetry, for charge ©, parity (P) and time (T).

In a new paper recently accepted for publication in the journal Annals of Physics, scientists propose extending this combined symmetry. Usually this symmetry only applies to interactions — the forces and fields that make up the physics of the cosmos. But perhaps, if this is such an incredibly important symmetry, it applies to the whole entire universe itself. In other words, this idea extends this symmetry from applying to just the “actors” of the universe (forces and fields) to the “stage” itself, the entire physical object of the universe."

Lotta good that’ll do me.

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4 points

i’m really just a dumbass but

you know how there’s all this extra gravity we cannot account for, so we just pretend it’s a “dark matter” for the physics syms? how silly would it be to ask if that extra gravity is coming from singularities in the windershins universe?

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I’d love to hear a band called Widdershins Universe.

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1 point

:chicken-bop:

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3 points

I mean that is one of the potential explanations of dark matter. It’s unlikely for a number of reasons tho. They’d have to be everywhere distributed pretty evenly.

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1 point

isn’t that what you expect to see after heat-death, when it’s all black holes slowly dissolving to Hawking radiation?

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turns out TENET was dead on. Chris Nolan haters in SHAMBLES.

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13 points

cock and parity torture

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21 points

This is just dumb speculative shit from paper churning clout chasers.

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6 points

Its headline gore, as “runs backwards in time” is being shamelessly substituted for “is composed of particles with different fundamental properties produced through a symmetry during the initialization of the universe”.

It also isn’t something terribly new. Just a theory that’s being continuously explored and fleshed out as incremental discovers in fundamental physics trickle in.

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I mean most cosmological theories at this point are speculative right? As long as the math is pretty people seem to like it (e.g. string theory).

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Isn’t cosmic inflation another one that’s got no concrete evidence?

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8 points

Yeah cus it’s bout damn impossible to test for things like string theory with our current tech/energy level.

Hell we just now confirmed the higgs boson and it’s been speculated to exist since the 50s.

Our capacity to theorize is far beyond our capacity to test. That doesn’t mean testing is impossible but it’s slow af compared to pure theory

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Yeah I get that but I dunno why the commentor above thought it was “speculative shit from paper churning clout chasers.” Kinda odd

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