Dr. Michael Kilgard

So the timing, whether to strengthen or weaken, is a millisecond, a thousandth of a second.

It says strong or weak.

Which way should I go with it?

And then I've got this two-second window that says sometime within a couple seconds, did it work?

Was that a win or a loss?

And if nothing happens, if it just wasn't important at all, then it all just gets flushed.

In one ear, out the other, you just forget it.

But when something exciting happens, you get release of acetylcholine, norepinephrine.

These things go into the brain.

They bind to receptors.

They change what's happening inside the cell.

And that computation is really sophisticated.

And we don't have 100 billion things making that computation.

We have 1,000 trillion running that computation.

And that computation is much more sophisticated than the computation that's happening when you train a large language network.

Most of your listeners will have heard of artificial intelligence, machine learning, have some basic idea.

But we know how that works because we built it.

And it doesn't work how you and I work.

It's a big, giant, global learning signal.

And we just keep running around feeding it back in.