Robert Krulwich

Okay, hold on one second.

Okay, I've got it right here.

Okay, so here it is.

Here's the short excerpt from a remix that her manager was nice enough to let me do of her song, of Juana Molina's song, Un Día.

Okay, I want to thank Paul Dalen and Juana Molina.

You can also go to juanamolina.com, check out her music.

And I want to thank Michael Rayfield for some of the sounds used in that remix, as well as Stuart Dempsey for some of the music.

I'm Jad Abumrad.

And I'm Robert Krulwich.

I'm Lulu Miller.

Okay, so this is about what you do for a living.

You know that I have this neighbor and friend, Brian Greene.

Yes, I do know that.

And the thing about Brian is he is a theoretical physicist.

Now, theoretical physicists say that it's theoretically possible to know everything there is to know in the universe.

So one day they'll be able to explain not only how you could send a rocket to the moon, but the laws that govern space and energy and time.

and gravity, everything, the whole universe, one day they think might be totally understandable using logic and mathematical equations.

Yes.

That's the big, big goal.

This is like playing poker.