Your brain is like a hungry sponge.

It's constantly absorbing information.

What are we saying by raising an eyebrow?

What matters more, being right or fitting in?

Why is it that we love destroying things?

Ahh!

♪♪

Why?

♪♪

Our lives are full

of decisions that we think

we make of our own free will,

but do we?

It can tell me what I was going to do

before I know I was going to do it.

- What?! - Yeah.

Psychologists say that fewer than three days

in a room like this can lead to brain damage.

I will be staying in this room...

for three days.

♪♪

I am so confused.

Your brain can be useful.

Oh, my God!

It can be dangerous.

[grunting]

[laughing]

And it can be...

a lot of fun.

♪♪