David Eagleman

I don't know, actually.

I don't know, actually.

Oh, sure. And so in America, we have to at least look at the bill for 200 milliseconds longer to figure out what am I holding because the size doesn't tell you the answer to that. So I think they should make them all the same size so that you at least look at it a little bit longer. They said, we love the idea, but we'd have to retool all the vending machines in Europe.

Oh, sure. And so in America, we have to at least look at the bill for 200 milliseconds longer to figure out what am I holding because the size doesn't tell you the answer to that. So I think they should make them all the same size so that you at least look at it a little bit longer. They said, we love the idea, but we'd have to retool all the vending machines in Europe.

Oh, sure. And so in America, we have to at least look at the bill for 200 milliseconds longer to figure out what am I holding because the size doesn't tell you the answer to that. So I think they should make them all the same size so that you at least look at it a little bit longer. They said, we love the idea, but we'd have to retool all the vending machines in Europe.

So that's why they rejected it.

So that's why they rejected it.

So that's why they rejected it.

Exactly right. And Darren did that experiment. But this was actually an experiment done at Harvard originally with some colleagues of mine who did this. They were very interested in this concept of change blindness, which is... How much do we notice changes in the world? Now, the fact is that the world tends to be stable. So I'm talking to you now, Jordan.

Exactly right. And Darren did that experiment. But this was actually an experiment done at Harvard originally with some colleagues of mine who did this. They were very interested in this concept of change blindness, which is... How much do we notice changes in the world? Now, the fact is that the world tends to be stable. So I'm talking to you now, Jordan.

Exactly right. And Darren did that experiment. But this was actually an experiment done at Harvard originally with some colleagues of mine who did this. They were very interested in this concept of change blindness, which is... How much do we notice changes in the world? Now, the fact is that the world tends to be stable. So I'm talking to you now, Jordan.

And if I look somewhere else and then I look back, you're really likely to still be here because that's just how physics works. But so they wanted to know, but what does that mean? If I'm assuming that I'm talking to you and then I look somewhere and you turn into somebody else, would I even notice? And so they did this experiment in the Harvard quad with the door passing in between people.

And if I look somewhere else and then I look back, you're really likely to still be here because that's just how physics works. But so they wanted to know, but what does that mean? If I'm assuming that I'm talking to you and then I look somewhere and you turn into somebody else, would I even notice? And so they did this experiment in the Harvard quad with the door passing in between people.

And if I look somewhere else and then I look back, you're really likely to still be here because that's just how physics works. But so they wanted to know, but what does that mean? If I'm assuming that I'm talking to you and then I look somewhere and you turn into somebody else, would I even notice? And so they did this experiment in the Harvard quad with the door passing in between people.

But there are many different versions. Just the simplest is you show a photograph and then the photograph goes away and you show the photograph again. And maybe you swap back and forth between A and B and A and B with a little blank space in between each time. You tell the person there's some massive difference between photo A and photo B. Can you tell me what the difference is?

But there are many different versions. Just the simplest is you show a photograph and then the photograph goes away and you show the photograph again. And maybe you swap back and forth between A and B and A and B with a little blank space in between each time. You tell the person there's some massive difference between photo A and photo B. Can you tell me what the difference is?

But there are many different versions. Just the simplest is you show a photograph and then the photograph goes away and you show the photograph again. And maybe you swap back and forth between A and B and A and B with a little blank space in between each time. You tell the person there's some massive difference between photo A and photo B. Can you tell me what the difference is?

And people are terrible at it. And once they finally do see it or you tell them the answer, they think, how could I not have seen that? There's like a major difference. A car disappears from one to the other or the railing in the background moves by three feet up and down. The engine of the airplane is missing or not missing from photo A to B. But we just don't see that. Why?

And people are terrible at it. And once they finally do see it or you tell them the answer, they think, how could I not have seen that? There's like a major difference. A car disappears from one to the other or the railing in the background moves by three feet up and down. The engine of the airplane is missing or not missing from photo A to B. But we just don't see that. Why?

And people are terrible at it. And once they finally do see it or you tell them the answer, they think, how could I not have seen that? There's like a major difference. A car disappears from one to the other or the railing in the background moves by three feet up and down. The engine of the airplane is missing or not missing from photo A to B. But we just don't see that. Why?