

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

Oct 9, 2021 • 52min
Jazz Migrations
Music crosses boundaries between traditional and modern, local and global, personal and political. Take jazz — a musical form born out of forced migration and enslavement. We typically think it originated in New Orleans and then spread around the world. But today, we examine an alternate history of jazz — one that starts in Africa, then crisscrosses the planet, following the movements of people and empires -- from colonial powers to grassroots revolutionaries to contemporary artists throughout the diaspora.
This history of jazz is like the music itself: fluid and improvisatory.
In this hour, produced in partnership with the Consortium of Humanities Centers and Institutes (CHCI) — a global consortium of 270 humanities centers and institutes — we hear how both African and African-American music have shaped the sound of the world today.
Original Air Date: July 04, 2020
Guests:
Meklit Hadero — Valmont Layne — Gwen Ansell — Ron Radano
Interviews In This Hour:
How Meklit Hadero Reimagined Ethiopian Jazz — So You Say You Want A Revolution — Reclaiming the Hidden History of South African Jazz — 'We Are All African When We Listen'
Further Reading:
CHCI Ideas from Africa Hub

Oct 2, 2021 • 52min
What Afghan Women Want You to Know
The women of Afghanistan are elected officials, school teachers, actors, TV contest winners, ancient rug weavers, and whisperers of forbidden poetry. The Taliban are starting to put down their thumb. But these women want you to know they are more than the timid victim under a burqa.
Original Air Date: October 02, 2021
Guests:
Humaira Ghilzai — Eliza Griswold — Anna Badkhen — Rafia Zakaria
Interviews In This Hour:
What's the future of culture in Afghanistan? — For Afghan weavers, the world is a carpet — Generations of Afghan women sharing the landay — How Afghanistan became America's 'first feminist war'

Sep 25, 2021 • 52min
Finding Meaning in Desperate Times
We’ve all been changed by the experience of living through a pandemic. We figured out how to sanitize groceries, mute ourselves on Zoom and keep from killing our roommates. But we’re also tackling bigger, existential questions — how can we, individually and collectively, find meaning in the experience of this pandemic?
Original Air Date: May 23, 2020
Guests:
David Kessler — Tyrone Muhammad — Nikki Giovanni — John Kaag — Alice Kaplan
Interviews In This Hour:
Grief Is A Natural Response To The Pandemic. Here’s Why You Should Let Yourself Feel It. — 'You Smell Death': Being A Mortician In A Community Ravaged By COVID-19 — Nikki Giovanni Reads a Poem of Remembrance — Does Philosophy Still Matter In The Age Of Coronavirus? — Why Camus' 'The Stranger' Is Still a Dangerous Novel

Sep 18, 2021 • 52min
The Secret Language of Trees
Using a complex network of chemical signals, trees talk to each other and form alliances with fellow trees, even other species. In fact, whole forests exist as a kind of superorganism. And some trees are incredibly old. Did you know a single bristlecone pine can live up to 6,000 years? And the root mass of aspens might live 100,000 years? We explore the science and history of trees and talk with Richard Powers about his epic novel "The Overstory."
Original Air Date: April 28, 2018
Guests:
Mark Hirsch — Richard Powers — Suzanne Simard — Amos Clifford — Daegan Miller
Interviews In This Hour:
A Year In The Life Of A Tree — Listening to the Mother Trees — Richard Powers on Writing the Inner Life of Trees — Bathing in the Beauty of the Trees — General Sherman, Karl Marx, and Other Aliases of Earth's Largest Tree

Sep 11, 2021 • 52min
Is War Ever Worth It?
For all the commentary, the sorrow and rage, all the second-guessing about everything that followed, it’s still hard to fathom what happened on 9/11. Photographer James Nachtwey was in New York that day, and he took some of the iconic photos of the Twin Towers as they crumbled. "I’ve actually never gotten over it," he says. On the twentieth anniversary of 9/11, Nachtwey reflects on his life as a war photographer, and we consider the deep history of war itself. We also examine a very difficult question: Is war ever worth it?
Original Air Date: September 11, 2021
Guests:
James Nachtwey — David Shields — Leymah Gbowee — Margaret MacMillan
Interviews In This Hour:
Remembering 9/11 Through The Lens Of A Photojournalist — War is Beautiful? — Humans Have Gotten Nicer and Better at Making War — Is War Inevitable?

Sep 4, 2021 • 52min
Traveling By Book
Before the time of commercial flights and road trips, we traveled to far off places without taking a single step. All you had to do was open a book. From Africa to England, to a kamikaze cockpit, and to realms of fantasy. Books aren’t just books. They’re passports to anywhere.
Original Air Date: March 14, 2020
Guests:
Philip Pullman — Ruth Ozeki — Robert Macfarlane — Petina Gappah
Interviews In This Hour:
Philip Pullman on 'The Pocket Atlas of the World' — 'His Dark Materials' Author Philip Pullman On The Consciousness Of All Things — A Diary Becomes A Time Capsule — Ruth Ozeki on 'Kamikaze Diaries' — Petina Gappah on 'Persuasion' — The Empire Writes Back: Author Discusses Explorer David Livingstone's Complicated Legacy — Robert Macfarlane on 'The Living Mountain'

Aug 28, 2021 • 52min
Our Virtual Reality
Not everyone has a nice, big yard to stretch out in while sheltering in place from COVID-19. But maybe you don't need one. People are using virtual spaces to live out the real experiences they miss — like coffee shops, road trips, even building your own house on a deserted island, or Walden Pond. In a world where we're mostly confined to our homes and Zoom screens, does the line between virtual and real-life space mean much anymore?
Original Air Date: May 16, 2020
Guests:
Mark Riechers — Tracy Fullerton — Simon Parkin — Jane McGonigal — Donald D. Hoffman — Suzanne O’Sullivan
Interviews In This Hour:
There's No Pandemic In Animal Crossing — I Went To The Woods To Level Up Deliberately — The Most Boring Video Game Ever Made — Want to be Happier? Turn Everyday Tasks Into a Game — How We Fool Ourselves With The Concept of 'Reality'
Further Reading:
NYAS: Reality Is Not As It Seems

Aug 21, 2021 • 52min
Plants As Persons
Over the past decade, plant scientists have quietly transformed the way we think of trees, forests and plants. They discovered that trees communicate through vast underground networks, that plants learn and remember. If plants are intelligent beings, how should we relate to them? Do they have a place in our moral universe? Should they have rights?
Human identity cannot be separated from our nonhuman kin. From forest ecology to the human microbiome, emerging research suggests that being human is a complicated journey made possible only by the good graces of our many companions. In partnership with the Center for Humans and Nature and with support from the Kalliopeia Foundation, To The Best Of Our Knowledge is exploring this theme of "kinship" in a special radio series.
Original Air Date: December 19, 2020
Guests:
Robin Wall Kimmerer — Matt Hall — Monica Gagliano — Brooke Hecht
Interviews In This Hour:
We've Forgotten How To Listen To Plants — We Share This World With Plants. What Do We Owe Them? — Guided by Plant Voices — The Botanical Medicine Cabinet

Aug 14, 2021 • 52min
Writing the Climate Change Story
One of the toughest things about trying to understand climate change – arguably the most important story of our time - is wrapping our minds around it. To even imagine something so enormous, so life-changing, we need a story. Some characters, a metaphor, and even some lessons learned. For that, we turn to the novelists and journalists telling the story of climate change – as we – and our children – live it.
Original Air Date: August 14, 2021
Guests:
Alice Bell — Lydia Millet — Lidia Yuknavitch — John Lanchester
Interviews In This Hour:
The Climate Change Stories We Need To Hear — The Climate Crisis Gets Biblical — Lidia Yuknavitch’s Dream World: How Dreams Shaped Her Dazzling Speculative Novel — A Climate Dystopia Of Cold, Concrete, Wind and a Wall

Aug 7, 2021 • 52min
Living In Skin
We all miss touching things — groceries, door knobs, hands, faces. And most of all, skin. The living tissue that simultaneously protects us from the world, and lets us feel it. In this episode, the politics, biology, and inner life of your skin.
Original Air Date: April 18, 2020
Guests:
Angelo Bautista — Tiffany Field — Alissa Waters — Nina Jablonski
Interviews In This Hour:
My Problem With Skincare — Even During Quarantine, You Need A 'Daily Dose Of Touch' — Reclaiming Scars As Works Of Art — The Science Of Skin Color


