This is a profound existential question!
What determines the concept of the individual?
If you were to make a clone of yourself and you two had the same memories, so that you couldn't know who the original is, would they be different people?
If you went back in time if you found your younger self, could you say that they are the same person?
If you travel to another dimension and find a parallel version of yourself, would it still be you?
It is the most important question of all: In any of these scenarios, if you went there and fucked your other self, would that be incest or masturbation?
Truly a profound question that scholars should debate quite seriously.
but on a more practical side, is it just "not incest" enough to get around Patreons restrictions