
Four Thousand Weeks came up with a genuine on-air endorsement 6 times across the episodes we processed. This page collects every one of those moments: who said it, what they said, and the exact point in the episode.
Four Thousand Weeks shows up 6 times in our count, spread across Diary of a CEO, Joe Rogan, and Tim Ferriss. Three very different shows landing on the same book about mortality and time management says something about how it resonates.
Each mention below is quoted directly from the transcript and linked to the exact point in the video. We didn't paraphrase anything, you get the guest's own words.

The average human lifespan is absurdly, outrageously, insultingly brief: if you live to 80, you have about four thousand weeks on earth. How should we use them best? Of course, nobody needs telling that there isn't enough time. We're obsessed by our lengthening to-do lists, our overfilled inboxes, the struggle against distraction, and the sense that our attention spans are shrivelling. Yet we rarely make the conscious connection that these problems only trouble us in the first place thanks to the ultimate time-management problem: the challenge of how best to use our four thousand weeks.
Where to get it & every mention“it's Four Thousand Weeks by Oliver Burkeman, which I thought was a fantastic book and there are a number of chapters that really stuck out as counterintuitively helpful” — Tim Ferriss 01:46:56
Mark Manson tells Tim Ferriss the unglamorous truth behind his mega-bestseller, his decade of quiet iteration, and his pivot back to online video.
“I thought Four Thousand Weeks was an exceptional book, and I plan to go back and reread it.” — Tim Ferriss 01:27:21
Tim Ferriss fields a solo live Q&A on PR, marketing, launching products, selling to the affluent, time dilation, and his personal protocols.
“yes four thousand weeks by oliver berkman it's a fantastic book everyone should go and check that out if you haven't” — Chris Williamson 00:49:03
Chris Williamson answers fan questions about his Joe Rogan appearance, NoFap, fame, dating, discipline, and building Modern Wisdom.
“4 000 weeks the book oliver berkman great book more highlights in that book and psychology of money than probably any books in recent memory for me” — Tim Ferriss 00:20:09
Tim Ferriss answers live and pre-submitted listener questions on wealth, money's limits, book recommendations, skill-building, and taking advice wisely.
“oliver burkman his book for anyone who's struggling with being ready for commitment is a really powerful book you could read that book as a dating book” — Matthew Hussey 01:23:23
Dating expert Matthew Hussey on why "the one" doesn't exist, chronic pain, vulnerability in men, and building rather than finding love.
“it's called four thousand weeks that refers to the average lifespan of humans and there's actually a lot of great exploration in this book” — Tim Ferriss 00:54:39
Tim Ferriss and Matt Mullenweg record from a tent on an Antarctic glacier, sharing personal reflections on grief, mortality, fear, and meaning.