
To The Best Of Our Knowledge
”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.
Latest episodes

4 snips
Nov 23, 2024 • 52min
The Sum of Our Data
Join Susannah Breslin, a journalist focusing on the sex industry; Lowry Pressly, a Stanford philosopher; and Carl Öhman, a political science professor from Sweden, as they navigate the intricate world of personal data. They discuss the implications of data ownership and privacy, especially after death. Explore how technology changes grief processes, the ethics of digital remains, and the evolution of privacy in a surveillance-heavy society. The conversation invites listeners to reflect on their own data legacy in a rapidly digitizing world.

Nov 16, 2024 • 52min
Let's Celebrate Crying
Join hip-hop artist Dxtr Spits, who promotes the How Men Cry movement, as he discusses the importance of emotional expression for men. Neuropsychiatrist Michael Trimble unpacks the fascinating neuroscience behind our tears, revealing why we cry and the unique role it plays in human connection. Theater artist Jen Plants shares insights on portraying genuine emotions on stage, emphasizing how tears can create powerful bonds with audiences. They explore societal pressures around vulnerability, making for a thought-provoking and heartfelt conversation.

Nov 9, 2024 • 52min
Playing with Words
Join A. J. Jacobs, a journalist famed for his quirky lifestyle experiments and puzzle passion, alongside Anna Shechtman, a crossword constructor and author focusing on gender in puzzle-making. They delve into the evolving love for word games like Wordle, exploring how puzzles became a comforting distraction during chaotic times. Discover the artistry in puzzle creation, the joy of collaborative problem-solving, and the heartwarming stories of how crosswords provide solace and inclusivity for many.

Nov 2, 2024 • 52min
Luminous: Is It The Drug Or Is It The Trip?
David Olson, a neuroscientist pioneering non-hallucinogenic treatments, joins psychiatrist Charles Raison and retired psychologist Rachel Harris to explore the dual nature of psychedelics in mental health. They debate whether profound experiences or molecular changes drive healing. The trio discusses the evolution of psychiatric practices, the potential of psychedelics versus traditional antidepressants, and the spiritual wisdom from underground healers. Engaging personal stories reveal the transformative power of psychedelics and the importance of women's voices in this burgeoning field.

Oct 26, 2024 • 52min
Generation Witch
Join Honey Rose, a TikTok witch known for her hoodoo practices, Rivka Galchen, author of a novel about witchcraft in history, Chris Gosden, an archaeologist revealing the culture of magic, and Quan Barry, who explores teenage witches. They dive into modern witchcraft on TikTok, the historical witch hunts of the past, and the complexities of cultural appropriation in spirituality. The conversation reflects on empowerment through witchcraft, connecting today's practices with centuries of tradition and offering a fresh perspective on belief and magic.

Oct 19, 2024 • 52min
In Your Dreams
In this insightful discussion, guests include Rubin Naiman, a sleep and dream specialist, Kelly Bulkeley, a psychologist exploring dreams in spiritual contexts, Roz Chast, a New Yorker cartoonist, and Annabel Abbs-Streets, a writer examining insomnia's creative potential. They dive into the transformative power of dreams for self-discovery, the impact of sleep deprivation on mental health, and the cultural significance of nighttime practices. Humor and introspection emerge as they share how dreams shape our relationships and illuminate the complexities of life.

Oct 12, 2024 • 52min
Everyday Magic
Nancy Marie Brown, a scholar of Icelandic culture and author, shares how Icelanders' belief in elves connects to a rich narrative tradition. Deborah Harkness discusses her All Souls trilogy, blending history and fantasy in a magical context. Tabitha Stanmore uncovers the complexities of witchcraft, revealing the duality of light and dark magic in history. Together, they explore how magic intertwines with everyday life, urging us to rediscover wonder in our own world.

Oct 5, 2024 • 52min
One Nation Under God?
In 2020, Donald Trump won 84 percent of the white evangelical vote. Lately, he’s been leaning even more deeply into the rhetoric of Christian nationalists. Who are they, and what’s their role in the evangelical church? We talk with some Southern Baptists today, whose views may surprise you. Original Air Date: March 09, 2024Interviews In This Hour: The 'simmering violence' of Donald Trump and Christian nationalism — Examining the role of Southern Baptist women — Why one Black pastor left the Southern BaptistsGuests: Jeff Sharlet, Beth Allison Barr, John OnwuchekwaNever 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.

6 snips
Sep 28, 2024 • 52min
Cult of the Self
Explore the rise of personal branding and our obsession with self-identity in the digital age. Discover how historical movements influenced today's culture of narcissism. Delve into the myth of rugged individualism and its hidden dependencies on community. Uncover the historical roots of self-obsession, including the connections between self-creation and divinity. Reflect on the costs of curating our identities online and the implications of consumerism and authoritarianism on personal worth.

Sep 21, 2024 • 52min
Beyond Death
Sebastian Junger, a renowned author and journalist known for his exploration of the human experience, delves into the mysteries of life and death. He shares chilling details of his near-death experience and discusses the profound realizations that accompany such moments. The conversation explores cutting-edge research in resuscitation medicine, revealing how the definition of death is evolving. Junger reflects on near-death experiences, cultural interpretations of consciousness, and the potential for an afterlife, challenging our understanding of mortality.
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