David Eagleman

Exactly right. But also, it's really easy to copy that. The ECB, the European Central Bank, hired me to do this. So I said, okay, are you going to send me some counterfeits? And they said, we can't for legal reasons, so you need to counterfeit yourself. You need to make your own? Exactly.

And it turns out, for the kind of studies I was doing, the difficulty with counterfeiting, for example, is getting the paper right. The paper is very special. I'll tell you how they do that in some places. In Venezuela, when the economy was really crashing there, they would bleach the Bolivar bills.

And it turns out, for the kind of studies I was doing, the difficulty with counterfeiting, for example, is getting the paper right. The paper is very special. I'll tell you how they do that in some places. In Venezuela, when the economy was really crashing there, they would bleach the Bolivar bills.

And it turns out, for the kind of studies I was doing, the difficulty with counterfeiting, for example, is getting the paper right. The paper is very special. I'll tell you how they do that in some places. In Venezuela, when the economy was really crashing there, they would bleach the Bolivar bills.

They would bleach their bills to make counterfeits for other countries because it turned out to be economically worthwhile to do that. But... So what I did, though, is I would, for example, you can take a bill and you can just copy it with a high resolution scanner and print it and so on. It doesn't feel quite right.

They would bleach their bills to make counterfeits for other countries because it turned out to be economically worthwhile to do that. But... So what I did, though, is I would, for example, you can take a bill and you can just copy it with a high resolution scanner and print it and so on. It doesn't feel quite right.

They would bleach their bills to make counterfeits for other countries because it turned out to be economically worthwhile to do that. But... So what I did, though, is I would, for example, you can take a bill and you can just copy it with a high resolution scanner and print it and so on. It doesn't feel quite right.

But the point is, it's quite easy to get all the pieces and parts, except for one, except for the watermark. The watermark is the part where you hold up the bill and you look and you can see a little figure through the thing there. That, it turns out, is the part that's the most difficult to counterfeit because that exists between the front and the back. That's what I thought, yeah. Exactly.

But the point is, it's quite easy to get all the pieces and parts, except for one, except for the watermark. The watermark is the part where you hold up the bill and you look and you can see a little figure through the thing there. That, it turns out, is the part that's the most difficult to counterfeit because that exists between the front and the back. That's what I thought, yeah. Exactly.

But the point is, it's quite easy to get all the pieces and parts, except for one, except for the watermark. The watermark is the part where you hold up the bill and you look and you can see a little figure through the thing there. That, it turns out, is the part that's the most difficult to counterfeit because that exists between the front and the back. That's what I thought, yeah. Exactly.

So you can't print that in any normal way. So typically counterfeit operations have an artist that draws that part. So this led to one of the main recommendations I made to the European Central Bank, which is they had a building, a little structure as their watermark. So you look in the thing, you see the little building.

So you can't print that in any normal way. So typically counterfeit operations have an artist that draws that part. So this led to one of the main recommendations I made to the European Central Bank, which is they had a building, a little structure as their watermark. So you look in the thing, you see the little building.

So you can't print that in any normal way. So typically counterfeit operations have an artist that draws that part. So this led to one of the main recommendations I made to the European Central Bank, which is they had a building, a little structure as their watermark. So you look in the thing, you see the little building.

I ran studies showing that I can show you a building and then I can show you another bill that has a similar building and you can't tell the difference. Unless you're an architect, you specialize in that kind of thing or something. This has Doric columns. This has ionic columns. Exactly. What I recommend is they put a face there because faces we are super specialized for.

I ran studies showing that I can show you a building and then I can show you another bill that has a similar building and you can't tell the difference. Unless you're an architect, you specialize in that kind of thing or something. This has Doric columns. This has ionic columns. Exactly. What I recommend is they put a face there because faces we are super specialized for.

I ran studies showing that I can show you a building and then I can show you another bill that has a similar building and you can't tell the difference. Unless you're an architect, you specialize in that kind of thing or something. This has Doric columns. This has ionic columns. Exactly. What I recommend is they put a face there because faces we are super specialized for.

We've got all this neural real estate for recognizing faces.

We've got all this neural real estate for recognizing faces.

We've got all this neural real estate for recognizing faces.

So you can tell if a face doesn't look right. Imagine you're looking at your wife's face and someone's drawn to the side. You would immediately be able to tell.