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[-] phoenixz@lemmy.ca 7 points 6 hours ago

I'd go with making each next proton in the universe an anti proton

[-] naeap@sopuli.xyz 6 points 6 hours ago

Maybe that's already the case, just out of our event horizon

There is, afaik, no explanation why there is more matter than anti matter, so maybe we just don't see it

Like, dark side of the universe or something ;⁠-⁠)

[-] sbeak@sopuli.xyz 4 points 4 hours ago

There is, afaik, no explanation why there is more matter than anti matter, so maybe we just don't see it

Like, dark side of the universe or something ;⁠-⁠)

This is the baryon asymmetry problem, and indeed, one of the proposed solutions is an "anti-universe" that flows backwards in time. The theory goes that all the antimatter travelled backwards in time while matter travelled forward from the Big Bang, creating a mirror anti-universe. However, there has been experimental evidence against this theory, as antiparticles seem to move forward in time, just like their matter counterparts.

There are a bunch more theories on how matter dominated the universe, like electroweak baryogenesis and leptopgenesis! Those are a bit more complicated though and are difficult to explain in an internet comment.

[-] DevDave@piefed.social 3 points 4 hours ago

I thought Madam Wu's experiment provided a starting point for explaining why the universe exists despite its best efforts to annihilate itself. Disclaimer, I have passing interest in physics but I have no formal education on any of it.

[-] naeap@sopuli.xyz 2 points 2 hours ago

Don't know about that
Can you provide me some more words to search for it or even a link?

[-] victorz@lemmy.world 6 points 5 hours ago

Imma go ahead and postulate that beyond the observable universe is a wall of anti matter, that keeps eating our universe's matter and neutralizing it.

Prove me wrong! (Don't.)

[-] naeap@sopuli.xyz 1 points 2 hours ago

Isn't that the opposite of what we're "seeing" now with the expanding universe and dark matter (not anti matter) being the reason for space to grow?

Anti matter and matter live inside the space, that dark matter is "producing"

At least that's my layman interpretation of looking at some videos and reading some stuff

So, I have no clue ;⁠-⁠)

this post was submitted on 18 Jun 2026
292 points (99.0% liked)

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