David Eagleman

If I put a slice of chocolate cake in front of you, Steven, part of your brain says, oh, that's a good energy source. Let's eat it. Part of your brain says, no, don't eat it. It'll make me overweight. Part of your brain says, okay, I'll eat it, but I'll go to the gym tonight. And the question is, who is talking with whom here? It's all you, but it's different parts of you.

If I put a slice of chocolate cake in front of you, Steven, part of your brain says, oh, that's a good energy source. Let's eat it. Part of your brain says, no, don't eat it. It'll make me overweight. Part of your brain says, okay, I'll eat it, but I'll go to the gym tonight. And the question is, who is talking with whom here? It's all you, but it's different parts of you.

All these drives are constantly arguing it out. It's, by the way, generating activity in the same parts of the brain as listening and speaking that you would normally do. It's just internal before anything comes out.

All these drives are constantly arguing it out. It's, by the way, generating activity in the same parts of the brain as listening and speaking that you would normally do. It's just internal before anything comes out.

All these drives are constantly arguing it out. It's, by the way, generating activity in the same parts of the brain as listening and speaking that you would normally do. It's just internal before anything comes out.

Well, this might be a good reason for you to keep pursuing possible ways to tap into your brain data. And by the way, it turns out that the internal voice is on a big spectrum across the population, which is to say some people like you have a very loud internal radio. I happen to be at the other end of the spectrum where I have no internal radio at all. I never hear anything in my head.

Well, this might be a good reason for you to keep pursuing possible ways to tap into your brain data. And by the way, it turns out that the internal voice is on a big spectrum across the population, which is to say some people like you have a very loud internal radio. I happen to be at the other end of the spectrum where I have no internal radio at all. I never hear anything in my head.

Well, this might be a good reason for you to keep pursuing possible ways to tap into your brain data. And by the way, it turns out that the internal voice is on a big spectrum across the population, which is to say some people like you have a very loud internal radio. I happen to be at the other end of the spectrum where I have no internal radio at all. I never hear anything in my head.

That's called anendophagia. But everyone is somewhere along this spectrum. One of the points that I've always really concentrated on in neuroscience is what are the actual differences between people traditionally that's been looked at in terms of disease states? But the question is, from person to person who are in the normal part of the distribution, what are the differences between us?

That's called anendophagia. But everyone is somewhere along this spectrum. One of the points that I've always really concentrated on in neuroscience is what are the actual differences between people traditionally that's been looked at in terms of disease states? But the question is, from person to person who are in the normal part of the distribution, what are the differences between us?

That's called anendophagia. But everyone is somewhere along this spectrum. One of the points that I've always really concentrated on in neuroscience is what are the actual differences between people traditionally that's been looked at in terms of disease states? But the question is, from person to person who are in the normal part of the distribution, what are the differences between us?

It turns out those are manifold. So take something like how clearly you visualize when you imagine something. So if I ask you to imagine a dog running across a flowery meadow towards a cat, you might have something like a movie in your head. Other people have no image at all. They understand it conceptually, but they don't have any image in their head.

It turns out those are manifold. So take something like how clearly you visualize when you imagine something. So if I ask you to imagine a dog running across a flowery meadow towards a cat, you might have something like a movie in your head. Other people have no image at all. They understand it conceptually, but they don't have any image in their head.

It turns out those are manifold. So take something like how clearly you visualize when you imagine something. So if I ask you to imagine a dog running across a flowery meadow towards a cat, you might have something like a movie in your head. Other people have no image at all. They understand it conceptually, but they don't have any image in their head.

And it turns out when you carefully study this, the whole population is smeared across the spectrum. So our internal lives from person to person can be quite different.

And it turns out when you carefully study this, the whole population is smeared across the spectrum. So our internal lives from person to person can be quite different.

And it turns out when you carefully study this, the whole population is smeared across the spectrum. So our internal lives from person to person can be quite different.

So I've spent about 25 years now studying synesthesia, and that has to do with some percentage of the population has a mixture of the senses. They might look at letters on a page, and that triggers a color experience for them, where they hear music and that causes them to see some visual, or they... put some taste in their mouth and it causes them to have a feeling on their fingertips.

So I've spent about 25 years now studying synesthesia, and that has to do with some percentage of the population has a mixture of the senses. They might look at letters on a page, and that triggers a color experience for them, where they hear music and that causes them to see some visual, or they... put some taste in their mouth and it causes them to have a feeling on their fingertips.

So I've spent about 25 years now studying synesthesia, and that has to do with some percentage of the population has a mixture of the senses. They might look at letters on a page, and that triggers a color experience for them, where they hear music and that causes them to see some visual, or they... put some taste in their mouth and it causes them to have a feeling on their fingertips.