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Creator of Ruby on Rails, CTO of 37signals, and creator of Omarchy.

• Our readingkorrents.com

  The last nine months have compressed decades of progress into weeks, and this is one of the rare moments a person gets to watch the world change inside their own lifetime.

  Their words

  I love this quote. I think it's Lenin. There are decades where nothing happens and weeks where decades happen. And we have seen decades of progress happen in the last nine months.

  youtube.com

Engineering leader on Google Chrome; writes about web performance and, lately, about working with AI coding tools.

• Our readingkorrents.com

  Very few developers understand memory management, and that is why the state of the art in memory debugging has barely moved in years.

  Their words

  I would say, sometimes, I don't know if it's controversial, that very few developers understand memory management. And that makes it even harder to debug memory problems. And so the state of the art around memory debugging hasn't evolved all that much over the years.

  youtube.com

Founding executive editor of Wired and author of What Technology Wants and The Inevitable. Writes at kk.org and runs its long-running recommendation projects, True Films and Cool Tools.

• Our readingkorrents.com

  The large-scale AI compute buildout may turn out to be a temporary phase rather than a permanent necessity.

  energy

  Their words

  The supercomputer inside our own skull runs on about 25 watts, which hints that the minimum energy needed for intelligence might be small - and that the giant, controversial AI compute centers we're building now may turn out to be a temporary blip rather than a permanent feature.

  Without a theory of intelligencekk.org

Statistician at Carnegie Mellon; writes on complex systems, machine learning and inference, and has kept a books-read notebook since 2000 that is now thousands of entries long.

• Likedrcmnd.app

  The Thinking Woman's Guide to Real Magic

  Their words

  Mind candy fantasy: in which an early-21st-century American young woman, whose English-lit thesis and love life are going equally poorly, does a good deed; gets rewarded with three wishes, without realizing it; and, in consequence, wanders off, first into Faery and then into a Fantasyland which is convincingly poor, sexist and dirty, but also magical.

  bactra.org

Head of Instagram since 2018, previously head of Facebook's News Feed.

• Our readingkorrents.com

  A strategy no reasonable person could disagree with is not a strategy; it means you are competing on raw execution.

  Their words

  It has to be controversial that you have to be a reasonable person should be able to disagree with it because otherwise you're probably just trying to compete on raw execution

  youtube.com

Uber's first Chief Technology Officer, from 2013 to 2020; later CTO of Coupang and of Faire.

• Our readingkorrents.com

  AI tooling has not compressed the gap between great and average engineers: it is still two or three times, and for the same reasons as before — curiosity and appetite for the bleeding edge.

  Their words

  we see the difference between the great engineer and an an average engineer is still two 3x in terms of their capability. They're more inquisitive. they're at the bleeding edge more, they're more innovative,

  Scaling Uber with Thuan Pham (Uber's first CTO)youtube.com

Writer and academic, author of The Cult of Smart and How Elites Ate the Social Justice Movement; writes a daily newsletter on politics, education and culture.

• Lovedrcmnd.app

  Amour

  Their words

  If I was put on the spot to name the greatest movie of the 21st century, I would probably say Michael Hanneke's Amour, an achingly moving, relentlessly unpleasant portrait of an elderly couple sinking into illness and senescence, forced into making the grimmest decisions possible.

  freddiedeboer.substack.com

Author of The 4-Hour Workweek and Tools of Titans, and host of The Tim Ferriss Show podcast.

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  Tomorrow, and Tomorrow, and Tomorrow

  Their words

  Fiction, 416 pages, which go very quickly. #76 on the NYT's list of The 100 Best Books of the 21st Century. This was a new find in 2025.

  tim.blog

Palaeontologist at Queen Mary University of London; studies dinosaur behaviour and writes about what the fossil record can and cannot tell us.

• Our readingkorrents.com

  The papers claiming Spinosaurus was a diver or a strong swimmer rest on very weak evidence at best.

  Their words

  So Spinosaurus is a super weird and exaggerated version of what was already a kind of super weird group of theropods. So Spinosaurus is properly strange. And then, as you kind of hinted at, super controversial as well, because various papers have claimed it's a diver or a really good swimmer, and I think the evidence for that is very weak at best.

  youtube.com

Social scientist at King's College London; writes The Great Gender Divergence on why societies differ in how they treat women.

• Our readingkorrents.com

  Deliberately shifting a culture is far harder now that everyone can personalise their media and skip past anything they dislike.

  Their words

  cultural engineering is extremely difficult in the 21st century: in this age of infinite personalisation, people can swipe past anything they dislike

  How do we Boost Birth Rates?ggd.world

Interface designer and researcher, known for the talks Inventing on Principle and Media for Thinking the Unthinkable and for essays on dynamic representations of ideas. Founder of Dynamicland, where he is building a communal computer.

• Lovedrcmnd.app

  Haskell

  Their words

  The programming language for the 21st century.

  worrydream.com

Economist at George Mason University, co-author of Marginal Revolution, host of Conversations with Tyler. Writes in short, dense claims about economics, culture and AI, and has moved position on AI in public more than once.

• Our readingkorrents.com

  John Stuart Mill's The Subjection of Women is one of the best, most important, and most original books of the nineteenth century.

  Their words

  Not only did Mill consider the topic of women, but virtually everything he claimed turned out to be true, and insightful, even though it was highly controversial at the time. It is one of the best and most important and most original books of the nineteenth century.

  tylercowen.com

Biochemist at University College London; writes about the origin of life and the role of energy in evolution, in The Vital Question and Transformer.

• Our readingkorrents.com

  Electrical fields shaping development look like mumbo jumbo to most biologists, and they are exactly where 21st-century biology is going.

  Their words

  And frankly biologists, most biologists are still very reluctant to even get themselves tangled up in questions like electrical fields influencing development. It seems like mumbo jumbo to a lot of biologists and it should not be because this is the 21st century biology.

  youtube.com

Founder and CEO of Get Lighthouse, a management-coaching software company, and previously a product lead at KISSmetrics. Writes about leadership, management and product at jasonevanish.com.

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  The Fountainhead

  Their words

  After having multiple friends recommend it, I decided it was time to read a book by the controversial Ayn Rand. I greatly enjoyed the lengthy story of triumph of the creative individual over the status quo, but I found the rape-driven relationship between main characters distasteful and took away from the story.

  jasonevanish.com