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When I was a little kid, I remember being really perplexed and fascinated by the concept of discovering a new number.

Like, if you counted high enough to get to a new spot, did you get naming dibs?

What else could discovering a new number even mean?

I mean, they're numbers.

Even though math was my favorite subject, I was always confused about new numbers and shapes, too. You know,

most of us learn about math as if it's some ancient thing that got figured out back in Pythagoras's

day, not a beckoning frontier. I bet you're about to flip that misconception right on its head for us,

right? That's the idea. On today's episode, we're looking at modern math.

The mathematicians of the 21st century are exploring some completely uncharted territory.

For Scientific American Science Quickly, I'm Rachel Felton.

And I'm Kyn Santos, your favorite math-obsessed drag queen.

You're listening to the finale of our special three-part series on The Hidden Secrets of Math.

I sometimes love thinking about the explorers of the past. It's related to colonialism and all that

kind of thing. But the idea of setting sail out into the ocean

and not knowing what's on the other side.

That's Eugenia Chang, a mathematician you might remember from last week.

She specializes in a rather new branch of math

...