"Sperm and egg cells, known as gametes, fuse during fertilization to create a zygote. "

Since all humans were just 2 cells at one point. It seems to follow that the entirely of the code for what a human is, is contained in just those 2 cells. Not just code for a finger. But even code for our deeply ingrained fear of snakes. Was just at one point contained in those 2 cells. Kind of blows your mind.

If they are separate living organisms, then there seems something recursive about humans if they can be just 2 cells at one point.