Strictly speaking there is no "single" historical path in the quantum world. Looking at Feynmans Path Integral method, you come to realize that the probaboility

Strictly speaking there is no "single" historical path in the quantum world. Looking at Feynmans Path Integral method, you come to realize that the probaboility of a system to transition from state A to state B is the (weighted) sum of the probabilities of all possible trajectories the system could have taken to get from A to B.