Airat Basch

The imbalance of matter over antimatter in our universe occurred as a result of the Big Bang splitting into two parallel dimensions rather than coming as one entity. The newly formed particles at the point of the Big Bang were dispersed into two collateral coexistences. Thereafter followed a phase of elimination, where matter and antimatter were cancelling each other out on either side of the newly split physical reality.
Leftovers formed our universe with its initial excess of matter over antimatter and an antimatter-predominated universe on another side of the split dimension. As a result, we ended up in a universe consisting entirely of matter.