Block world theory doesn’t rule out multiple possible realities whose manifestation is affected by choices you make, taking the point of awareness that is you along different filaments of potential than if you chose something else.
That would be down to probabilities, and persopnal potential based on genetics, ancestral and past-life inheritances, etc., it’s one of the reasons I am so enthusiastic about self-improvement style work, because you become better at creating desirable probabilities, instead of going with the flow.
This is the post on it, for anyone wondering: