Neil deGrasse Tyson

But the fact that we can sit there and say, oh, I feel this and I don't, and it's mostly how we reckon with our ignorance of our environment, even when we probe it for knowledge.

Wait, Chuck.

What Nick just said, I can't stop thinking about it.

So, Chuck, every time you and I forget something, the alien's hard drive messed up.

It's a read-write error, an I.O.

error in a programmer's disk.

Otherwise, it's a perfect computer.

Oh, wow.

Yeah, in the film iRobot, forgive me for not having read the original series of short stories by Isaac Asimov, but in the film, they hypothesize what could account for free will in a programmed robot.

And they were describing how many generations of operating systems

are layered on top of one another, and there's always these dangling parts that...

You don't always clean it up after because evolution is like this too.

They're dangling parts that worked at some point.

Now you don't need them or they could get in the way or they can end up killing you.

But programmatically, there could be lines of code that have long lost their utility but could manifest under certain combinations of stimuli that look like the robot just thought of a new idea.

And I was intrigued by that suggestion when I heard it in the film, that that could be the way you end up with what we call consciousness.

But anyway, we've got to take another break.

When we come back for the third and final segment, we're going to go through a lightning round with our questions.

And it's Nick Bostrom.

just schooling us on whether or not we're in a simulation.