You are a number within numbers counted. If you didn't exist you would be a zero, not one of a kind. 0.0 happen before 1-10 so every 1.0 had 30 previous ancestors living in their ancestry 4 generations before your conception. 16, 8, 4, 2, you and any sibling from same two parents. This process happens every generation gap regardless the species or ancestral lineages of that species.