Can a person who is blind come to see through her tongue?

Can a baby be born without ears?

What does it like to have the smell of a dog?

And what does any of this have to do with airplane pilots or Westworld or potato head.

Welcome to Inner Cosmos with me, David Eagleman. I'm a neuroscientist and an author, and my

fascination for a very long time has been how brains perceive reality, because the strange

part is that we're not seeing most of the action that's going

on out there so today we're going to dive into that and we're going to see how we might expand

our perception we're built out of really small stuff like DNA, and we're embedded in a very large cosmos,

and we're not particularly good at perceiving reality

at either of those scales.

And that's because we've evolved to deal with reality,

it's this very thin slice in between

at the level of rivers and apples and rabbits and stuff like that.

But even here at our level of perception, we're not seeing most of the action that's going

on. So take, for example, the colors of our world. So picture the reds and blues and greens

and purples. These are light waves that bounce off objects and hit

these specialized receptors at the back of our eyes. And then we perceive these colors. But we're not

seeing all the light waves that are out there. In fact, what we see is less than a 10 trillionth of the light waves out there. So if you look at what's called

the electromagnetic spectrum, you have radio waves and microwaves and x-rays and gamma rays. All

these are light. They're just different frequencies. These are passing through your body right

now and you're completely unaware of them because your biology they're just different frequencies. These are passing through your body right now,

...