Quantum immortal
(Damn short version and according to their own understanding)Let's say you have 1 gun when you pull the trigger 1 time to your head. Events would also break apart as the many-world theory is that there is one universe where you will survive being shot and another universe where you will die. And if you look at the illustration, it goes like this and so on. Even if you have the lowest chance of survival, there will always be universes where you survive being shot. Even if the chance is only 0.01 percent or no possibility. In the end, quantum interpretations of many worlds are divided into universes where you survive and you don't.
example : There are certain events where you will be devoured by a black hole approaching Earth. There will always be universes where you survived and did not survive. As for the cause of survival, it's uncertain, but there might be some way.
Well, there is a theory that that good lucky might be caused by the theory of quantum immortality. Some of them are fortunate enough to at most be due to the interpretation of many worlds and the division of the universe into many events. In which you happen to be in a universe where you are fortunate, but of course there is a universe where you will suffer disappointment and misfortune. That may be the source of good luck or lucky.
Let's close the part on why this happens infrequently and intermittently. Perhaps there are more natural mechanisms that we need to study.