Dr. Michael Kilgard

But whether that's really how we work, where we really are too much blood, too much bile, too much phlegm, or even too much serotonin, too much norepinephrine, too much dopamine, maybe there's more to us.

Well, what could it be besides that?

And the answer is, I think the experiments from our forefathers, Ramon y Cajal, Emilio Golgi, said it's the connections.

And we went, what do you mean connections?

What would the connections do?

And now we know from some beautiful studies that have come out recently, it's 150 trillion of these things inside my brain, inside your brain, inside each of our listeners' brains.

And how do they get to be the way they are?

Did the genes make them?

The genes?

There's only 3 billion base pairs in the genes.

Not nearly enough.

We only have 20,000 proteins.

How could 20,000 make $150 trillion?

They couldn't.

Genes are critical.

They set us up to learn.

But they're not enough to tell us how we work.

And I think that's true.

But the genes are interacting with our experiences.

As we listen, as we hear, our brain is being rewired.