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Kent Beck

@kentbeck.com
10K followers 190 following 504 posts

Independent I guess these days you'd say content producer, artist, programmer, musician, pokerist. More about me at KentBeck.com.

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Kent Beck @kentbeck.com · 24/09/2026
I don’t need a special tax on billionaires. I just need them to pay the same percentages that I pay.
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Kent Beck @kentbeck.com · 21/09/2026
I was listening to a "future of AI" conversation & one of the participants said, "Imagine if you had a trillion token context window. You could capture the whole of human experience." And I thought well, perhaps your experience. And then I was sad.
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Beth Andres-Beck @beth4ma.bsky.social · 23/08/2026
I’ve long said that with the rise of generative AI we need laws that protect people, the environment and our future. I now have a detailed story of what that could look like: bethfordemocracy.com/beth_andres_...
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Beth Andres-Beck @beth4ma.bsky.social · 16/08/2026
The best HR training I ever attended was led by an ex-Marine. I was the only non-man in the room. We watched the video demonstrating sexual harassment. A young guy piped up, “I just don’t see what the big deal is.” The ex-Marine never raised his voice. He didn’t need to.
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Beth Andres-Beck @beth4ma.bsky.social · 13/08/2026
If the Free Software Foundation had money, we could make that happen🤷 Lawyers win their seats twice as often as other professions because their lawyer friends disproportionally donate to other lawyers: onlinelibrary.wiley.com/doi/10.1111/... #goals
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Kent Beck @kentbeck.com · 06/08/2026
I asked my daughter Beth: how do we get the AI excited about writing tests? "First it needs an endocrine system." The model has no enthusiasm of its own. What exists is us plus the genie. The caring part is still ours.
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Kent Beck @kentbeck.com · 04/08/2026
My daughter Beth, on writing self-driving software in 2008: They told the car "if stuck, relax constraints until you're free." It hit a roadblock, thought a while, and relaxed "don't drive on sidewalks." So it drove onto the sidewalk. "Exactly what I told it. Not what I wanted."
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Kent Beck @kentbeck.com · 02/08/2026
My daughter Beth on Still Burning: A kid learns to count past thirty and says "31." Another asks, "How do you know that?" The first kid is smart. The second one goes further, because she's asking how the solving gets done. That's meta-intelligence, and you can learn it.
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Kent Beck @kentbeck.com · 02/08/2026
A bonus Still Burning with my daughter, Beth Andres-Beck. I asked when she first knew she was a geek.
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Kent Beck @kentbeck.com · 01/08/2026
On Still Burning with my daughter Beth: a driverless car makes an illegal U-turn, gets pulled over, and there's nobody in the car to ticket. Her reframe: it's not "the computer" driving. It's software a person wrote, under someone's incentives. The responsibility didn't vanish, it just hid.
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Kent Beck @kentbeck.com · 30/07/2026
My daughter Beth's joke: make programmers "work to rule," so they must refactor, test, integrate, collaborate. As a strike it fails, because you'd get more productive. A part we stopped laughing at. Teams did it, shipped great software, and got fired anyway.
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Kent Beck @kentbeck.com · 30/07/2026
My daughter Beth went seven years without writing tests, then converted a whole team. There's a trick she found in code review. Stop pointing out bugs, point out the missing test. Every test caught a bug. "It's your fingers on the keyboard. Write more tests out of defiance."
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Kent Beck @kentbeck.com · 30/07/2026
From my bonus Still Burning with my daughter, Beth Andres-Beck: Why do we keep building agents to run without us? Beth's answer: there's a nervousness about including people at all. We call things "automated" so no one has to be responsible.
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Kent Beck @kentbeck.com · 28/07/2026
Org-design idea from my daughter Beth on Still Burning: the Guild of Guilds. Groups who do similar work compare notes. Then one more guild, of all the guild leaders, catches the company-wide problems no single team can see. How you get recruited? Curiosity. It's a trap.
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Kent Beck @kentbeck.com · 25/07/2026
I asked my daughter Beth what keeps her up at night. Not the robots doing whatever they want. The robots doing exactly what some people tell them to. We're building tech that could be a personal army, where you no longer need anyone else's help to do great harm.
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Kent Beck @kentbeck.com · 23/07/2026
New bonus episode of Still Burning is out. My conversation with my daughter, Beth Andres-Beck. Engineer, ex-self-driving-car programmer, organizer, now running for Congress. On tests, AI agents, and who's accountable when nobody's in the car. Listen and watch: share.transistor.fm/s/54f0099a
share.transistor.fm
How Do You Know That? | Still Burning | Episode 9
A bonus edition by the fire: Kent talks with his oldest, Beth Andres-Beck — software engineer, one-time self-driving-car programmer, theater major, organizer, and now a candidate for Congress. They…
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Kent Beck @kentbeck.com · 17/07/2026
Keith Adams on Still Burning: "Ignoring these tools post-Nov 2025? You're fooling yourself, head in the sand." What separated the graybeards who bounced off from those who broke through? Curiosity: ask why it failed, then turn the crank.
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Kent Beck @kentbeck.com · 15/07/2026
Keith Adams asked what keeps me up at night. Not any one problem, the meta-problem: we've lost the ability to address big problems at all. Save-the-whales math: incentives made killing the last whales rational. How do we get the brakes back?
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Kent Beck @kentbeck.com · 15/07/2026
An idea from Keith Adams on Still Burning, and neither of us thinks it's settled: If software quality is proof-of-work, the moat isn't cleverness. It's gigawatts. Keith calls it the frontier labs' quiet bet. Maybe true, maybe not.
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Kent Beck @kentbeck.com · 14/07/2026
For 20 years software had a stable playbook. Need reliability? Here are five ways to write tests. Keith Adams on Still Burning: now that writing code is nearly free, the engineers best at that playbook turn to it, and it's blank.
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Kent Beck @kentbeck.com · 14/07/2026
Keith Adams on Still Burning: programming lost its flow state. The agent world feels more like air traffic control. What I miss is feeling oriented, a sense of mastery. That loss is emotional, and when software gets fiddly, practical too.
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Kent Beck @kentbeck.com · 08/07/2026
Keep one person on an AI safety team who never uses LLMs, ever? The worry is a slow con, these tools quietly earning your trust. You'd want one person whose immunity stays intact.
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Kent Beck @kentbeck.com · 07/07/2026
"If these tools are so good, where's all the magic software?" I see more bugs now, in software that was rock solid before. The uncomfortable question: when does that hit something load-bearing? Has it already?
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Kent Beck @kentbeck.com · 07/07/2026
Keith Adams thought AI would democratize software, raise the floor. His dream: a version of Doom where all the monsters have my face. But its been "more of an amplifier of differences in facility than a leveler." Expected a compressor. Got the opposite.
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Kent Beck @kentbeck.com · 03/07/2026
On Still Burning I told Keith Adams this shift erases two of my books. Crafting code so it communicates to other humans was a real craft. But it's like horseshoeing now: no leverage in being the best horseshoer, even the world's best.
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Gergely Orosz @gergely.pragmaticengineer.com · 01/07/2026
There are few people who have impacted the software engineering industry like @kentbeck.com has. He'd never before told his career story from start to today in one sitting - until now. What a treat: • YouTube: www.youtube.com/watch?v=ddHQ... • Spotify: open.spotify.com/episode/3M6h...
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Gergely Orosz @gergely.pragmaticengineer.com · 01/07/2026
Tomorrow on The Pragmatic Engineer podcast - with a legend, @kentbeck.com
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Kent Beck @kentbeck.com · 30/06/2026
New word from Jessica Kerr I love: symmathesy — a learning system made of learning parts. People, code, and now agents as a third kind of node, each learning differently. Her kicker: agents read docs every 15 min, not once a year. That's why docs finally stay current.
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Kent Beck @kentbeck.com · 30/06/2026
I asked Jessica Kerr what keeps her up at night. "Two kids to put through college, and I can't say I'll have a job in any city that pays what I want. The market is different now." Her answer: demand will surge, and someone has to design the IKEA furniture. So get great at that.
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Kent Beck @kentbeck.com · 29/06/2026
Jessica Kerr's pinned tweet, and the heart of our Still Burning episode: "I don't want to build software so much as build understanding and express it in software." The new craft: designing a system that produces working code and being able to say why you know it works.
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Kent Beck @kentbeck.com · 28/06/2026
"Human in the loop" — until the loop becomes a noose. Jessica Kerr on Still Burning: if you try to understand everything the agent did, you're stuck. Don't verify the work by hand. Make the agent build the thing that verifies itself.
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Kent Beck @kentbeck.com · 27/06/2026
Hey n00b: nobody cares how many tasks you complete. We hired you for the engineer you'll become, not today's output. We're not measuring your output. We're watching its first derivative. newsletter.kentbeck.com/p/hey-n00b-w...
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Kent Beck @kentbeck.com · 24/06/2026
"We're accumulating code faster than we're accumulating trust." Code you can fix. Trust evaporates in an instant and doesn't come back. XP was a trust factory. Every practice that builds it makes you trustworthy. Vibe coding removes those moments: newsletter.kentbeck.com/p/trust-fact...
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Kent Beck @kentbeck.com · 23/06/2026
Agents can forget. People can't. "Parenting works like this now? 'That didn't work, slash clear. Rewind. Reload my game from before you came in the door.'"
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Kent Beck @kentbeck.com · 21/06/2026
A billion dollars in 30 years. I wouldn't take it. Push "tomorrow" far enough and the future is worth nothing to you. XP knew it: earn sooner, spend later. True for a career, not just code. On money and mortality: newsletter.kentbeck.com/p/extreme-ti...
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Beth Andres-Beck @beth4ma.bsky.social · 19/06/2026
The FTC is suing the World Professional Association for Transgender Health to try to shut down trans health care. When fascists tell us not to do something, it is time to increase that thing. We can make Congress twice as trans: bethfordemocracy.com
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Kent Beck @kentbeck.com · 19/06/2026
Programming isn't going away, it's splitting in two. Jessica Kerr on Still Burning: "If you want to build a bookshelf, that's a craft. But there's also IKEA." The code-crafting got commoditized. Knowing what to build didn't.
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Kent Beck @kentbeck.com · 19/06/2026
"The Slow" don't exist. They're responding to your incentives. Slash the schedule and people hide progress and inflate estimates. The real lever is scope: how much of which goal, first? Scope is the steering wheel: newsletter.kentbeck.com/p/scope-is-t...
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Kent Beck @kentbeck.com · 17/06/2026
Genies give you a degraded facsimile of the mediocre code they trained on. Two axes: features (works or it doesn't) and futures (optionality). The genie drifts down-and-to-the-left, plausible "success" on broken code. Awareness is step one: newsletter.kentbeck.com/p/genie-tarpit
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Kevlin Henney @kevlin.bsky.social · 12/06/2026
New on the blog: Sustainable Space A revisit and revision an old pattern of mine for stable code formatting. medium.com/@kevlinhenne...
medium.com
Sustainable Space
A pattern for stable code formatting
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John Scalzi @scalzi.com · 24/05/2026
"Peaked on Twitter" is the new "Peaked in high school"
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Beth Andres-Beck @beth4ma.bsky.social · 19/05/2026
The headline should be “Trump announces he will embezzle $1.776 billion dollars”. It is a crime, not a law. Elect a Democrat who won’t pretend crimes are normal: bethfordemocracy.com
bethfordemocracy.com
Beth for Democracy | Bethany Andres-Beck for Congress
Bethany Andres-Beck is a candidate for Congress running to represent Massachusetts' 6th District.
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Beth Andres-Beck @beth4ma.bsky.social · 18/05/2026
Thank you for everyone who came out to our meet and greet yesterday.
Beth holds a baby who tugs on their beard. (Baby's face covered)Beth smiles at a group of people.Beth speaks with enthusiasm with a group of people.A small crowd of people watch as Beth speaks. The photo is taken from behind.
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Kent Beck @kentbeck.com · 09/05/2026
Genies in the Forest & the Desert--once again genies reflect & amplify what already exists. The Desert becomes the desert but now you're alone. The Forest becomes the forest with whole new sources of food & shelter.
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Kent Beck @kentbeck.com · 07/05/2026
The assumption seems to be that the best use we have for people is eliminating their salaries.
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darth™️ @darthbluesky.bsky.social · 05/05/2026
murderbot day
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Kent Beck @kentbeck.com · 01/05/2026
AI tools don't muddle along with us. They fall below muddling, plausible deniability disguised as code. Low features, low flexibility, complexity stacking until even the genie gives up.
tidyfirst.substack.com
Genie Tarpit
Genies give you code that’s a degraded facsimile of the mediocre code it trained on.
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Kent Beck @kentbeck.com · 25/04/2026
There's one concept from economics that explains almost every disagreement I've ever had about work and money. I've been teaching it for 30 years. Turns out I wasn't fully applying it to myself.
tidyfirst.substack.com
Extreme Time Value of Money: Late-stage Career Planning
First published January 4, 2021, just before this newsletter started.
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Kent Beck @kentbeck.com · 23/04/2026
If the agent writes 1,000 lines in seconds, maybe you can finally let go of them. "When you can easily regenerate it, it feels less valuable. And that makes it easier to throw away." We've always struggled with sunk cost in code. AI might be solving that accidentally. More on E3 of Still Burning.
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Mathias Lafeldt @mathias.blog · 06/04/2026
The first episode was very compelling. Looking forward to the actual interviews!
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