There’s a theory according to which we’re all part of a big Multiverse, where every new event sparks a new reality / a parallel Universe, leaving behind an infinite number of other potential outcomes, with just as many potential futures lying ahead. Personally, I don’t care for it.
It’s not that I don’t believe in it. I do. But I choose to ignore it. Our existence on this Earth is physical, and physical objects live in the now. The choices that we make are just that – choices. We are solely responsible with measuring the good-to-bad ratio of the outcome. Nature doesn’t seem to care. In this respect, novelist Cormac McCarthy once quipped: