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How Does AI Actually Work, & How is it Changing Our World? On 'Understanding AI' - Timothy B. Lee | #61

Amid the AI hype-doom binary, there's a lot of noise. The best thing you can do in these cases is find the voices who make sense of complexity. Timothy B. Lee

Welcome to the Urgent Futures podcast, the show that finds {signals} in the noise. Each week, I sit down with leading thinkers whose research, concepts, and questions clarify the chaos, from culture to the cosmos.

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My guest this week is Timothy B. Lee.

Timothy B. Lee is a reporter who has written about technology, economics, and public policy for more than a decade. Before he launched Understanding AI in 2023, he wrote for the Washington Post, Vox.com, and Ars Technica. He has a master’s degree in computer science from Princeton.

If there are two letters in the English language you’ve been unable to escape over the past four years, it’s A and I. Artificial intelligence has emerged as the buzziest tech category since the metaverse and NFTs, but unlike those, AI has managed to reach a level of market dominance that almost defies imagination—to quote my article on the prospective AI bubble:

AI [absorbed] 57.9% of all global venture capital funding in early 2025…and a growing share of venture debt. The stock market itself has become hostage to this concentration: the “Magnificent Seven” dominate the S&P 500, with Nvidia alone accounting for close to 8% of its weight … a recent Financial Times report—ominously titled, “America is now one big bet on AI,” found that the hundreds of billions of dollars companies are investing in AI accounted for an eye-watering 40% share of all U.S. GDP growth in 2025.

Sit with that for a second.

Thus, whether you like it or not, it’s in your best interest to have a clear understanding of what AI is, even in the broad strokes. And that’s a deceptively tricky thing to do amid all the frenzied hype and doomerism; there’s a lot of nonsense and ungrounded speculation flying around. So I thought I’d sit down with somebody whose work helped ground my own understandings: today’s guest, Timothy B. Lee.

Tim published a piece on his Substack Understanding AI a few years ago called “Large language models, explained with a minimum of math and jargon,” which for my money is still the single most lucid plain-English breakdown you’ll find anywhere. And he’s continued to produce other informative analyses—if you haven’t already, I encourage you to subscribe to Understanding AI to, well, understand AI.

It’s remained a key reference for me as I navigate the AI hype-doom binary, so I wanted to bring him on the show to talk about what he’s learned and what he’s thinking about, including his current assessments of the AI industry and its future prospects, and he did not disappoint.

Longtime Urgent Futures audiences will note that he’s a bit more optimistic about the state of affairs than I am, though he’s certainly not a blind booster. And while I remain deeply critical of many of the social, economic, and political trappings associated with the AI industry, the clarity of his thought offered additional dimensions for consideration. So without further ado, please enjoy this illuminating conversation with Timothy B. Lee.

Another episode you might like:

A far out conversation on “rewilding reality” in the AI age with polymath Michael Garfield:

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CREDITS: This podcast is edited and produced by Adam Labrie and me, Jesse Damiani. Adam Labrie also directed, shot, and edited the video version of the podcast, which is available on YouTube. The podcast is presented by Reality Studies. If you appreciate the work I’m doing, please subscribe and share it with someone you think would enjoy it.

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Find more episodes of Urgent Futures at: youtube.com/@UrgentFutures. Past conversations include Taylor Lorenz, Lisa Messeri, Legacy Russell, William E. Rees, Renée DiResta, and more. Here is another recent episode with Alyssa Battistoni discussing her latest book Free Gifts: Capitalism and the Politics of Nature:

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