My two pet theories:

Right before you are born, you make every possible decision you are ever going to make, and then your soul chooses the course that is least bad for most gain, like a min-maxer.

Or! Every time you make a decision that kills you, you die! But you soul hops to the reality where you didnt die, because the universe is an infinite dimension holograph of all possible everything, and it really is just about learning and growing

Anecdote time: once upon a time I was a young man working in chem hose. I would get sent all over to do onsight testing and repair with my work mate, we were good friends and druggos lol.

So we got sent to this beautiful majestic place to work. After work we took mushrooms and went to the national park. Fun! It got dark, so we went driving down some farm roads. After some time I decided to stop. We smoked weed, hung around, then after a bit got tired and went home. Sounds normal right?

Next day, couldnt find the weed after work, no big, lets hit that farm road, see it in the day, maybe find it. After some time the road ended.. at the resevoir. The weed was there, and so were my tire tracks. 5 feet away from the edge of the reseviour. Seems like oh, we would just have lost the truck and gotten out right? No. It was a sheer wall 20' to the bottom. We should both be dead, and in that other universe, we are dead...