There is that greentext where OP fucks his mother, gets a daughter, then fucks the daughter until he gets a (grand-)daughter, then fuck her etc. ad infinitum. The idea is that each generation would become more like OP genetically, and after sufficiently many steps he could fulfill his dream of fucking his twin sister.

But would this actually work? I mean putting aside the practical issues of age difference and inbreeding, purely from a genetics point of view: would the limit child resemble OP as closely as a twin? I started calculating the genes and chromosomes on paper, and I think the limit case is a parent-child similarity (ie 50%), because there's always one step of meiosis between you and your child, regardless of who the other parent is. Am I correct? Is OP an idiot? I'm a brainlet, so someone please confirm.