The Darwinian B Cell Squid Game

Each B cell, each B cell does one of these rearrangements and you don't have 10 to the 16 B cells. In your body, there's something like in a mouse, a hundred million B cells orSomething like that in a human maybe 10 to the 11 or something like that. Different B cells, each one of which has a different antibody that it can make out of these10 to the 16 possibilities.