>>11885543Alternate reality is a faggy way to say "another region in spacetime outside of my lightcone"
There are infinite or transfinite instances of you interacting with the stairs in every physically possible way, where the most probable are more numerous and the most rare or unique are less numerous. You don't even live in a "single reality" like its a fucking Marvel 'dimension', the consensus reality you experience is an overlap of many physically possible arrangements and the future is ever-changing, confined only to the laws of logic and physics.
So yes, there's another instance of the same arrangement of atoms you call you who tripped and got hurt, but the actual *you* that you are, experienced only what is now in your past.