David Eagleman

And we say, oh, look, you're passing information along.

But I don't think that was the intention.

I think it sells all

fighting for survival.

And in one of these, you know, amazing, bizarre, biological results, you get a human brain out of this.

But yes, many of the neurons in your brain die.

And what you get, you know, in your first two years of development is this massive overgrowth of all these things growing like a garden that's going nuts.

And then

From about the age of two onward, all you're doing is you're really pruning the garden.

You're taking things away.

And cells all over your body actually have this way of committing suicide.

It's called apoptosis, where it's not that they're dying because of injury or something and releasing inflammatory chemicals.

It's that they're saying, okay, I'm done here.

And they fold up shop and they carefully kill themselves.

And so this is a majorly important part of how the brain develops.

So it turns out that in the brain, no territory lies fallow.

Everything is going to get used.

And so we think about this area at the back of the head.

We think of that as the visual cortex.

But yes, if you go blind, it's no longer the visual cortex.