Lemonada.

Today's episode is sponsored by Great Wolf Lodge.

At Great Wolf Lodge, there's adventure for the whole family.

You and your pack can splash away in the indoor water park where it's always 84 degrees.

There's a massive wave pool, a lazy river, and tons of water slides for your

pack to enjoy together. And the fun doesn't stop there. Get ready to explore and play at

adventure packed attractions from MagiQuest, a live action game that takes place throughout the

lodge to the Northern Lights Arcade. There's also a bunch of great dining options in

complimentary daily events like nightly dance parties all under one roof. And the best part, with 22 lodges across the country, you're always only a short drive away from adventure. So bring your pack together at a lodge near you. Book your stay today at great wolf.com and strengthen the pack.

Brains on Universe.

You're listening to Brains on, where we're serious about being curious.

There's a note story that goes something like this.

Two fish are swimming in the water. And a turtle swims find says,

Good morning, fish. How's the water?

The two younger fish smile and nod and swim on for a bit.

Then one fish stops and says to the other,

What the heck is water?

The fish didn't notice the water because they've been in it

all their life. They never thought about it. The point is that there are things all around us that we just

don't notice because they've always been there. Like the taste of your own spit. Or the smell of

plain old air. Or how right now the earth is spinning hundreds of miles an hour,

and somehow we don't feel it.

...