>Matter/anti-matter asymmetry is expected to be present. It is a basic feature of individual random walk
It may be the cause, but it is not known to be the cause.
And it's not a random walk; black holes accumulate charge from pairs, making future radiation not symmetric.
My understanding is that people have probed this for some time and it's still inconclusive if it can generate the observed imbalance. Here's [1] a 1979 paper on the idea, with hundreds of citations, in case you want to poke at the literature.
If I remember, Cosmology by Weinberg has a chapter on various theories of how the imbalance may happen, none of them known to be all of or even part of the answer.
It may be the cause, but it is not known to be the cause.
And it's not a random walk; black holes accumulate charge from pairs, making future radiation not symmetric.
My understanding is that people have probed this for some time and it's still inconclusive if it can generate the observed imbalance. Here's [1] a 1979 paper on the idea, with hundreds of citations, in case you want to poke at the literature.
If I remember, Cosmology by Weinberg has a chapter on various theories of how the imbalance may happen, none of them known to be all of or even part of the answer.
[1] https://journals.aps.org/prd/abstract/10.1103/PhysRevD.19.10...