I had a similar thought but then wondered if the question would be why there's a bias in which type of matter condenses out of the energy. All this stuff is way over my head but it's fun to think about.
>if the question would be why there's a bias in which type of matter condenses out of the energy
Yes, it's exactly this! The fact that there's more matter than antimatter in the universe means that, somewhere, some process has to break the symmetry and be 'biased', treating antimatter differently than matter. (There are known processes that do this - certain specific meson decays that are ever-so-slightly biased towards decaying into matter rather than antimatter, other weird stuff like that - but the observed phenomena are nowhere near strong enough to explain the degree to which matter predominates in the observed universe.)
As far as we can tell, all interactions involving gravity, the electromagnetic field, and the strong nuclear interaction[1] are perfectly symmetric with respect to matter versus antimatter. The weak nuclear interaction (which is involved in a lot of processes that transform particles into other kinds of particles, like radioactive decay) does break it - that's what's up with those meson decays - but only a little bit, in very specific cases.
[1]It's actually a bit of a puzzle why the strong force doesn't violate this symmetry; according to our understanding of the math for the strong interaction, it totally could - there are terms that naturally appear in the equations that would lead to it. But, the values for all of those terms appear to be as near to zero as we can measure. There's no obvious reason this should be the case, especially because another force - the weak nuclear force - has no problem with slightly violating that symmetry.
There doesn’t have to be a break in rules symmetry tho. Imagine that universe is a giant dipole of a magic field F, one end of it carries huge field +F the other -F. Next imagine, that presence of +F is likely to precipitate matter from energy, while -F is likely to yield antimatter. Thus a perfectly symmetric system of rules will produce area with only matter and only anti-matter. And blazing inferno in between the two zones.
Yes, it's exactly this! The fact that there's more matter than antimatter in the universe means that, somewhere, some process has to break the symmetry and be 'biased', treating antimatter differently than matter. (There are known processes that do this - certain specific meson decays that are ever-so-slightly biased towards decaying into matter rather than antimatter, other weird stuff like that - but the observed phenomena are nowhere near strong enough to explain the degree to which matter predominates in the observed universe.)
As far as we can tell, all interactions involving gravity, the electromagnetic field, and the strong nuclear interaction[1] are perfectly symmetric with respect to matter versus antimatter. The weak nuclear interaction (which is involved in a lot of processes that transform particles into other kinds of particles, like radioactive decay) does break it - that's what's up with those meson decays - but only a little bit, in very specific cases.
[1]It's actually a bit of a puzzle why the strong force doesn't violate this symmetry; according to our understanding of the math for the strong interaction, it totally could - there are terms that naturally appear in the equations that would lead to it. But, the values for all of those terms appear to be as near to zero as we can measure. There's no obvious reason this should be the case, especially because another force - the weak nuclear force - has no problem with slightly violating that symmetry.