TTBOOK Presents: Deep Time

Contemplating the infinite is a time-tested way to shrink the present down to size. But if you think about it for very long, infinity can really mess with your mind. There’s something fundamentally paradoxical about it, and beautiful.Deep Time is a series all about the natural ecologies of time from To The Best Of Our Knowledge and the Center for Humans and Nature. We'll explore life beyond the clock, develop habits of "timefulness" and learn how to live with greater awareness of the many types of time in our lives.Original Air Date: June 07, 2025Interviews In This Hour: The glorious mathematics of infinity — Checking into the infinity hotel — Finding solace in the nature of space-time — The math and mysticism of Albert EinsteinGuests: Jordan Ellenberg, Jon Halperin, Michelle Thaller, Kieran FoxNever 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.

Some artists work with pen and ink, some use brushes and paint. And some make art out of time. Meet some contemporary artists who are finding new ways to bridge the distance between us and the furthest reaches of time.Deep Time is a series all about the natural ecologies of time from To The Best Of Our Knowledge and the Center for Humans and Nature. We'll explore life beyond the clock, develop habits of "timefulness" and learn how to live with greater awareness of the many types of time in our lives.Original Air Date: February 15, 2025Interviews In This Hour: Crafting cosmic art through deep time — What if clocks were synced to the flow of a river? — Capturing a symphony of time in a dawn chorusGuests: Katie Paterson, Jonathon Keats, Alex BraidwoodNever 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.

The longest nights of the year are here, but how many of us will see them? The global spread of light pollution is making it harder to experience dark skies and natural darkness. Learning how to reconnect with the planet’s ancient nocturnal rhythms can be profoundly restorative. Nature writers and darkness activists tell us what we’re missing.Deep Time is a series all about the natural ecologies of time from To The Best Of Our Knowledge and the Center for Humans and Nature. We'll explore life beyond the clock, develop habits of "timefulness" and learn how to live with greater awareness of the many types of time in our lives.Original Air Date: December 21, 2024Interviews In This Hour: Listening to the song of the night — Adjusting our eyes to wonders of the nocturnal worldGuests: Sam Lee, Leigh Ann HenionNever 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.

Our lives are so rushed, so busy. Always on the clock. Counting the hours, minutes, seconds. Have you ever stopped to wonder: what are you counting? What is this thing, that’s all around us, invisible, inescapable, always running out? What is time? Original Air Date: November 18, 2023 Interviews In This Hour: Time, loss and the Big Bang — Finding solace in the vastness of space — Carlo Rovelli's white holes, where time dissolves Guests: Marcelo Gleiser, Marjolijn van Heemstra, Carlo Rovelli Check out the full series at ttbook.org/deeptime

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. For more from this series, visit ttbook.org/deeptime. 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 Never 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.