Episode Archives

Filter episodes by the year they originally aired.
Erik Davis

Erik Davis’ “Blotter” takes a deep dive into the psychedelic underground. Steve talks with Erik about the wildness of psychedelic experiences and whether they reveal a deeper dimension of consciousness.Read more

Original Air Date:

July 20, 2024

Most Americans take their sovereignty for granted — the nation’s right to make its own laws and govern its own people. But for Native Americans, sovereignty is not some abstract idea. It’s an ongoing, daily struggle.Read more

Original Air Date:

July 13, 2024

Newspapers running off the presses

Americans used to believe that news anchors were basically reporting the truth. But in recent years, trust in journalism has largely evaporated. And that’s not an accident. So what can journalists do to regain the public trust?Read more

Original Air Date:

June 15, 2024

an array of cookies

The sights, smells and tastes of certain foods transport us back to a certain place or time in our lives. We meet kitchen ghosts from Kentucky, hear how religion and food are intertwined, and talk about how flavor evokes emotion.Read more

Original Air Date:

May 25, 2024

Brian Muraresku

Brian Muraresku makes the controversial argument that the famous Eleusinian Mysteries were fueled by a psychedelic wine — which he speculates may have inspired the Christian sacrament of the Eucharist. Read more

Original Air Date:

May 04, 2024

A lone figure among discarded paper.

Sometimes, the strongest and most courageous thing you can do is walk away. Read more

Original Air Date:

April 27, 2024

What sort of creative project could a human being and a robot work on together?

AI can do amazing things – write your term papers, sequence your genes, maybe replace your therapist. But does AI really have a mind? Is there a soul in the machine?Read more

Original Air Date:

March 30, 2024

God and country

In 2020, Donald Trump won 84 percent of the white evangelical vote. We talk with some Southern Baptists today, whose views may surprise you. Read more

Original Air Date:

March 09, 2024

What if we embrace our dreams — and our night selves —  as a way to understand ourselves better, to connect to each other, even to lead a better life?Read more

Original Air Date:

February 24, 2024

In the world of internet influencers and YouTube stars, it’s not enough to be ordinary anymore. You need to be special. But where did this craze for personal branding come from? Why are we so obsessed with ourselves?Read more

Original Air Date:

February 03, 2024

Mike Jay

British historian Mike Jay wants to challenge the narrative of psychedelic “exceptionalism.” He also believes more scientists should talk about their personal psychedelic experiences. Read more

Original Air Date:

January 27, 2024

Man using umbrella crossing the street

For generations, through wars, crisis, and political upheaval, documentary poets have helped make sense of some of our most difficult moments – by expressing what might otherwise be impossible to say. So what are they writing about today?Read more

Original Air Date:

January 13, 2024

To the best of our knowledge presents luminous

There's a fascinating question at the heart of psychedelic science. Is it the mind-blowing experience that fundamentally changes a person’s outlook on life? Or is it the powerful molecules that rewire the brain?Read more

Original Air Date:

December 16, 2023

pins in a map

Maps reflect the time they were drawn for. How will the next generation of cartographers deal with challenges like a world being reshaped by climate change? Read more

Original Air Date:

December 09, 2023

can you have too much transcendance

Over the course of 20 years, Chris Bache had 73 high-dose LSD experiences — doses so high that the human body couldn’t tolerate anything more. Read more

Original Air Date:

November 18, 2023

Deep Time: The Cosmos and Us

What is this thing, that’s all around us, invisible, inescapable, always running out? What is time?Read more

Original Air Date:

November 18, 2023

An unseen, unknowable monster, peering into our dimension through a screen, lurking in the static.

We celebrate weird fiction in all its forms, from haunted video tapes on YouTube to the original eldritch being himself, H.P. Lovecraft. Read more

Original Air Date:

October 28, 2023


The knowledge about many psychedelics comes from Indigenous cultures — which raises ethical questions for the Western scientists studying them. Can psychedelics be decolonized?Read more

Original Air Date:

October 21, 2023

Bodies of different shapes and sizes.

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?Read more

Original Air Date:

September 30, 2023

portrait of a woman in bronzino and abstract styles

Before family photos, or school pictures or Instagram, there were hand-drawn and painted portraits. We consider how we see ourselves — and others — through these deeply personal images.Read more

Original Air Date:

September 23, 2023

TTBOOK and CHN present Deep Time

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

Original Air Date:

August 19, 2023

TTBOOK Presents Luminous with Gul Dolen

Gul Dolen is a pioneering neuroscientist who's investigating the “critical periods” of psychedelics, including studies where she's given MDMA — also known as “Molly” — to octopuses. Read more

Original Air Date:

August 12, 2023

crying child

We all feel better after a good cry. In fact, humans are the only animals who cry emotional tears. But what about people who don't cry? And have you ever wondered why a sad song or movie makes you cry?Read more

Original Air Date:

August 05, 2023

TTBOOK Presents Luminous

Can neuroscience explain what happens to the brain on psychedelics? And even if we map the brain while it’s tripping, does that tell us why these experiences can be so transformative? Read more

Original Air Date:

July 15, 2023