

To The Best Of Our Knowledge
Wisconsin Public Radio
”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.
Episodes
Mentioned books

Feb 26, 2022 • 52min
Growing Justice
A new generation of Black farmers are working to reclaim land, hoping to grow justice along with vegetables and plants.
Original Air Date: August 22, 2020
Guests:
Leah Penniman — Savi Horne — Venice Williams — Marcia Chatelain
Interviews In This Hour:
How Black Farmers Lost 14 Million Acres of Farmland — And How They're Taking It Back — 'When You Hold Land You Have to Keep It' — My Garden Is An Outdoor Parish — Cooking Greens: A Delicious Family History Lesson — The First Job, The Polling Place, The Community Space: How McDonald's Became 'The Closest Thing To Home' For Black Communities
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Feb 19, 2022 • 52min
Worshipping Waterfalls: The Evolution of Belief
Jane Goodall has seen wild chimpanzees dance and bristle with excitement around roaring waterfalls — and she thinks it’s an experience of awe and wonder — and possibly a precursor to animistic religion.
But can we ever know why our ancient human ancestors developed spiritual beliefs? Can evolutionary science uncover the roots of religion?
At some point our ancestors went from admiring waterfalls to worshipping them - and all kinds of spirits and gods. They developed sacred rituals and turned stones into totems. And then came the Battle of the Gods.
This was produced in partnership with the Center for Humans and Nature, an organization that brings together scholars from a diversity of disciplines to think creatively about our relationships with nature and each other. What do you think evolution can tell us about love and morality? Share your thoughts at humansandnature.org. This episode was made possible through the support of the John Templeton Foundation.
Original Air Date: May 14, 2017
Guests:
Jane Goodall — Laura Kehoe — Frans de Waal — Barbara King — Ara Norenzayan — Jeff Schloss — Andrew Newberg
Interviews In This Hour:
Do Chimpanzees Have Spiritual Experiences? — How 'Big Gods' Transformed Human History — An Evolutionary Biologist Searches for God — What Bliss Looks Like In Your Brain — Are Morals a Part of Our Evolution?
Further Reading:
Center for Humans and Nature
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Feb 12, 2022 • 52min
Rewriting the Romance Script
We take a look at the romantic tropes of modern love and how they’re changing. Do the old dreams of true love and happiness ever after fit our new lives and new identities?
Original Air Date: February 13, 2021
Guests:
Logan Ury — Angelo Bautista — Jane Ward — Angela Chen — Bara Jichova Tyson
Interviews In This Hour:
The New Coffee Date: COVID-19 Pushes The Dating World To Zoom — Are Straight People Okay? — Love Without Touch, Desire Without Sex — Learning To Believe In Monogamy
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Feb 5, 2022 • 52min
To All The Dogs We've Loved
The bond we share with dogs runs deep. The satisfaction of gentle head scratches or a round of playing fetch is simple and pure, but in other ways, the connection we have is truly unknowable. How do dogs make our lives better? How do they think? And how do we give them the lives they deserve?
Original Air Date: February 05, 2022
Guests:
Blair Braverman — Quince Mountain — Donna Haraway — Sarah Miller
Interviews In This Hour:
Adventure, goofiness and trail snacks: Stories from the dog musher's journal — Getting inside the mind of a dog — Nothing makes losing a dog easy. But a bridge dog can help. — Joy and peace, high up on Dog Mountain
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Jan 29, 2022 • 52min
Our Time of Mourning
Is there a better way to talk about death? And to grieve? So many people have died during the pandemic — 4.8 million and counting — that we're living through a period of global mourning. And some people — and certain cultures — seem to be better prepared to handle it than others.
Original Air Date: June 19, 2021
Guests:
Heather Swan — Gillian O'Brien — Charles Monroe-Kane — Gabe Joyner — Rafael Campo
Interviews In This Hour:
The Barred Owl Who Came To Visit — How The Irish Talk About Death — How To Remember A Beloved Brother? A Memorial Tattoo — A Physician-Poet Bears Witness to the Pandemic's Lost Voices
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Jan 22, 2022 • 52min
Searching for Order in the Universe
When things don't go the way they're supposed to — viruses, star systems, presidents, even fish — we're often desperate to explain the chaos. In this episode, we search for order in the universe.
Original Air Date: August 08, 2020
Guests:
Patrik Svensson — Lulu Miller — Alexander Boxer — Margaret Wertheim — S. James Gates Jr.
Interviews In This Hour:
The Weird World Of Eels — We Call Them Fish. Evolution Says They're Something Else. — The Original Algorithm Was Written In The Stars — Seeing The World With A Mathematician's Eyes
Further Reading:
Nautilus: Eels Don’t Have Sex Until the Last Year of Their Life—NYAS: The Mystery of Our Mathematical Universe
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Jan 15, 2022 • 52min
Journeys Through Gender
Sharing of personal pronouns has become standard practice on resumes, business cards, email signatures and more. And that’s just one sign of an increasingly widespread shift in how we think about gender. So what’s next? And what would it take to actually celebrate gender freedom? To have trans joy?
Original Air Date: January 15, 2022
Guests:
Jules Gill-Peterson — Big Freedia — Torrey Peters — Akwaeke Emezi
Interviews In This Hour:
The Long History of the Trans Child — A Diva's Oasis? Bounce Music — 'Detransition, Baby' author Torrey Peters on life, love, gender and parenthood — Many Identities, One Spirit
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Jan 8, 2022 • 52min
A Parenting Revolution
The pandemic has made it clear that parents are walking a tightrope with no safety net. We talk to parents about how they want to change the system, what it's like to raise black boys in a time of racial injustice, and how we might learn from ancient cultures to improve our parenting skills.
Original Air Date: May 22, 2021
Guests:
Alissa Quart — Brittany Powell — Michaeleen Doucleff — Amaud Jamaul Johnson — Cherene Sherrard
Interviews In This Hour:
A Parenting Movement Emerges From the Pandemic — Modern Parenting Tips From Ancient Civilizations — Two Poets On Raising Black Teenage Boys In America
Further Reading:
Economic Hardship Reporting Project
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Jan 1, 2022 • 52min
Time Beyond The Clock
Clocks and calendars chop time into increments – minutes, hours, days, years. It’s efficient, and it helps us get to meetings on time. But when we invented artificial time, we gave up natural time, and a deep sense of connection to the larger universe. What does time feel like when you stop counting it?
Original Air Date: January 04, 2020
Guests:
Alexander Rose — Douglas Rushkoff — Wade Davis — Brian Swimme — Laura Williams — Rachel Sussman
Interviews In This Hour:
Alexander Rose on The Clock of the Long Now — Reclaiming Time — The Eternal Moment — Brian Swimme on Organic Time — Laura Williams on a Tidal-Powered Moon Clock — What It Looks Like To Live For 600K Years
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Dec 25, 2021 • 52min
The Power of Pleasure and Joy
What if the most unselfish thing you could do was to pursue pleasure? To look for delight? To feel joy? We make the case for the transformative power of joy, pleasure and delight.
Original Air Date: October 12, 2019
Guests:
Ross Gay — Kathryn Bond Stockton — Laurie Santos — Lynne Segal
Interviews In This Hour:
365 Days Of Delight: A Poet's Guide To Finding Joy — A Queer Theorist On Ecstatic Kissing — Laboratory of Joy: A Psychologist On The Science of Feeling Good — The Revolution Will Be Joyful: Feminist Lynne Segal On Fighting Power With Pleasure — The People Power Of Happiness
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