The human brain is naturally mathematical. But there’s one particular kind of math people have surprisingly strong feelings about — geometry. It's the secret sauce of mathematics — different from everything else, and applicable to everything from gerrymandering to human evolution to romance novels.

Original Air Date: May 28, 2022

Interviews In This Hour: 

The 14th dimension, AI that writes romance novels, and other things explained by geometry — Did shapes make us human?

Guests: 

Jordan Ellenberg, Stanislas Dehaene

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The Hidden Geometry of Everything

”To the Best of Our Knowledge” is a Peabody award-winning national public radio show that explores big ideas and beautiful questions. Deep interviews with philosophers, writers, artists, scientists, historians, and others help listeners find new sources of meaning, purpose, and wonder in daily life. Whether it’s about bees, poetry, skin, or psychedelics, every episode is an intimate, sound-rich journey into open-minded, open-hearted conversations. Warm and engaging, TTBOOK helps listeners feel less alone and more connected – to our common humanity and to the world we share.

For more from the TTBOOK team, visit us at ttbook.org.

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When you look at your body in the mirror, do you love what you see? Do you pick out the things you don’t like? Maybe you’ve heard of body positivity. But what if we just felt neutral about our bodies? In this episode, we talk about our bodies — how we move through the world in these fleshy vessels, how it feels to exist in our bodies in a world that asks so much from them. How do we live full and embodied lives?Original Air Date: September 30, 2023Interviews In This Hour: Finding Peace in Neutrality: Jessi Kneeland on Rethinking Body Positivity — The Body Speaks: Rae Johnson on Reconnecting with Ourselves to Transform Society — Multiple Identities, One Body: Sami Schalk Discusses Black Disability PoliticsGuests: Jessi Kneeland, Rae Johnson, Sami SchalkNever want to miss an episode? Subscribe to the podcast.Want to hear more from us, including extended interviews and favorites from the archive? Subscribe to our newsletter.

Being Body Conscious

We celebrate Mother's Day with a collection of stories from our archives, by and about moms. Stories about care and about courage — about the work of mothering.

Original Air Date: May 13, 2023

Guests:

Stephanie Land, Eula Biss, Jacqueline Horner Plumez, Amanda Henry, Ayelet Waldman

For The Love Of Moms

Before family photos, or school pictures or Instagram, there were hand-drawn and painted portraits. Throughout the ages, portrait artists have captured expressions and personalities on canvas or paper, and those who view the picture interpret this “likeness” in their own way. We talk with a philosopher, a musician and a novelist about the role of portraits through history, and how we see ourselves —and others — through these deeply personal images.

Original Air Date: September 23, 2023

Guests: 

Peter Brathwaite, Maggie O'Farrell, Steven Nadler, Thijs Gerbrandy, Norbert Middelkoop

Reframing the Portrait

We get the message before we’re out of training pants – when the going gets tough, look on the bright side, make lemonade out of lemons and just do it. We’re gonna consider the exact opposite – the wisdom of giving up and letting go. Because sometimes, the strongest and most courageous thing you can do is walk away.

Original Air Date: April 27, 2024

Interviews In This Hour:

The power and boundary-breaking of fasting — How do we know when to call it quits? — Escaping the tyranny of certainty

Guests:

John Oakes, Adam Phillips, Maggie Jackson

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Giving Up

Are you ready to think in centuries instead of seconds? Eons instead of hours? It’s time to make thousand-year plans and appreciate how Earth keeps time. 

Original Air Date: August 19, 2023

Interviews In This Hour:

Shifting your mind to 'geologic' time — Discovering the wonders of ancient cave art — Making art inspired by the ancestors

Guests:

Marcia Bjornerud, Stephen Alvarez, Dustin Illetewahke Mater

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The Hidden Geometry of Everything

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