Here, we see the wild brain cell in its natural habitat--a large, empty, cavernous structure of thick bone and little else. A rare creature, it is--its fellow brain cells have largely been all but wiped out by repeated exposure to What If.
Watch as the brain cell grazes on some literature. Wait, what is this? The brain cell isn't consuming the kind of literature needed to sustain it! In fact, the brain cell is... oh my, it's nibbling on a piece of What If! Stop it, brain cell! You're the last of your kind!
Thankfully, the brain cell lives to see another day after this brief and unexpected encounter with a What If.