How can a character explain baryon asymmetry (there is more matter than antimatter) by the universe being a simulation with a slightly imbalanced random number generator being employed at the point where it is decided where a newly created particle is matter or antimatter? I know that RNGs have problems with truely random sequences but I guess creating a binary one where exactly half the values are true is relatively easy (as the number of possible states of n bits is 2n which is always even), so how could I realistically use that as a reason?