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20 September
Mac and iOS developer at the Iconfactory, where he has worked on apps including Twitterrific and Tot. He writes about development at furbo.org.
Another bug with iOS 27.1: when your app launches in a partially folded state, the view’s traitCollection has a compact horizontal size class. If you close the Duo, and then open it partially, the horizontal size class is regular. This can lead to weird layouts when you launch an app in the partially folded state: only workaround is to close/open device again. Weirdly, auto layout constraints in a storyboard aren’t affected by this. It’s something in the UIViewController transition methods. Related
Economics professor at the University of California, Berkeley and a former Deputy Assistant Secretary of the US Treasury. Author of Slouching Towards Utopia and writer of the Grasping Reality newsletter.
Today modern advertising, public relations and corporate values statements typically carry any equivalent constraints to the old-fashioned check on rhetoric imposed by the imminent expectation of contradiction by an opposing equally-platformed counter-advocate. Contrast 1858’s Lincoln and Douglas, “divid[ing] time and address[ing] the same audiences” in seven three-hour debates, with modern corporate values statement radiating outward to “stakeholders” forever, and you can measure what... 1/ Related
19 September
Working on @ampcode. Writing registerspill.thorstenball.com. Once authored interpreterbook.com and compilerbook.com.
Google startups
Their words
The difference between software engineering at large corporations and small ones will increase. Start-ups adopting practices of Google will look even sillier than before, because they can now build so much faster and with so much less constraints.
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thorstenball.com
17 September
Software engineer who writes about low-level and systems programming at nullprogram.com; author of the Elfeed feed reader, the Endlessh SSH tarpit and Enchive.
16 September
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.
One of the most challenging forms of customer validation is when you can see the pain and the need, but both you and the customer struggle to figure out the right shape of the solution within the constraints of what’s possible. Related
5 September
Software entrepreneur who bootstrapped and sold FeedbackPanda and now builds Podscan; writes The Bootstrapped Founder.
You can see this story of (apparently) internal OpenAI agents hijacking a wiki to coordinate on a task as an ingenious way of escaping constraints. You could also assume that this is the emergence of swarm intelligence. Either way, it's... mesmerizing: collusion.wiki
OpenAI Related
3 September
Author of Recoding America; founded Code for America and was US deputy chief technology officer from 2013 to 2014. Writes Eating Policy on why governments cannot do what they decide to do.
1 September
Co-founder of AngelList. Writes and podcasts at nav.al in short, aphoristic pieces on startups, wealth and judgement rather than long essays.
Children are free until they learn that there are constraints to the world, and then we call them adults. Related
24 August
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.
Their words
It is often the financial constraints that make dreams come true.
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A Billion Dollars kk.org
14 August
Graphic designer and type designer, who created the original Macintosh icons and typefaces at Apple from 1982 and has since designed interface graphics for NeXT, Microsoft, Facebook and Pinterest.
Their words
usually I think you can be creative in any constraints. You can make some pretty fun art with beach trash while you're walking around. And this you can be creative, but it's good to understand what the constraints are, and then be excited about that as opposed to being upset that you don't have a thousand colors.
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youtube.com
11 August
Swedish essayist who writes Escaping Flatland, a newsletter of essays on relationships, thinking, writing and homeschooling.
26 July
Creator of Ruby on Rails, CTO of 37signals, and creator of Omarchy.
18 June
Chief executive of Intel since 2025, founder of the venture firm Walden International and chief executive of Cadence Design Systems for thirteen years.
Their words
One is of course everybody knows power constraint. Some country the power they just don't have that. They get impacted. And then secondly, a lot of people didn't realize the helium impact can be also very significant for semiconductor. And then the thirdly, is everybody know right now memory is a bigger shortage.
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youtube.com
9 June
Bootstrapper and investor. Founder of TinySeed and MicroConf, host of the Startups for the Rest of Us podcast, and author of several books on self-funded software startups.
What should I talk about at MicroConf Iceland this fall? I’m looking for ideas for a 35-minute main-stage talk. A couple constraints: • No early-stage validation or “how to launch” topics • No AI talks, I’ve covered that ground plenty What are you thinking about these days? What’s a topic you’d want me to unpack? (Even if you’re not attending, the talk will be on YouTube a few months after the event.) Related
1 June
Programmer and writer known for detailed source code reviews of classic game engines, and author of the Game Engine Black Book series on Wolfenstein 3D and DOOM.
25 May
Swedish programmer with degrees in engineering and psychology, author of Your Code as a Crime Scene and founder of CodeScene.
I still meet people convinced that AI coding tools will soon reach a point where code quality, design, and even architecture are "solved". So I ran a small ad-hoc experiment. I’ve been working on a CLI tool and let agents plan and implement a first functionally correct version. I provided strict instructions around testing strategy, workflows, and implementation constraints. But I deliberately removed the @codescene MCP and the safeguards I normally rely on. Unsurprisingly, the resulting code suffered from a ton of problems. It would have been a shaky foundation to continue building on. How s… MCP Related
16 May
AI research engineer working on large language models. He writes the Ahead of AI newsletter and is the author of Build a Large Language Model (From Scratch).
12 May
Indian value investor who taught Behavioural Finance and Business Valuation as an adjunct professor at MDI Gurgaon. He writes the Fundoo Professor blog about investing, moats and mental models.
“Used actively and with intention, AI is more than a functional productivity tool. It advances what a single person can take on: a young professional fluent in digital tools for research, analysis, and execution can now do work that once needed a team Think of AI as a huge, tireless brain holding answers to almost any question. But what to ask, within which constraints, and what to look for in the answer, is the part only the human can direct. Framing the right problem requires giving AI the right history and concerns. The quality of the answer is, in the end, governed by the quality of askin… Quoting @riteshmjn Listen to Ashish if you dont want to listen to me. Related
1 April
Uber's first Chief Technology Officer, from 2013 to 2020; later CTO of Coupang and of Faire.
31 March
Founding member of OpenAI and former director of AI at Tesla; creator of nanoGPT and the term "vibe coding".
New supply chain attack this time for npm axios, the most popular HTTP client library with 300M weekly downloads. Scanning my system I found a use imported from googleworkspace/cli from a few days ago when I was experimenting with gmail/gcal cli. The installed version (luckily) resolved to an unaffected 1.13.5, but the project dependency is not pinned, meaning that if I did this earlier today the code would have resolved to latest and I'd be pwned. It's possible to personally defend against these to some extent with local settings e.g. release-age constraints, or containers or etc, but I thin… stepsecurity.io
Quoting @feross 🚨 CRITICAL: Active supply chain attack on axios -- one of npm's most depended-on packages. The latest axios@1.14.1 now pulls in plain-crypto-js@4.2.1, a package that did not exist before today. This is a live compromise. This is textbook supply chain installer malware. axios has 100M+ weekly downl… Related
23 March
Swedish essayist who writes Escaping Flatland, a newsletter of essays on relationships, thinking, writing and homeschooling.
I met up with @jacksondahl in Copenhagen and had a conversation about the value of lingering in confusion, using constraints to enable more creative work, how I journal, why love is like eating dogs, and many other things. You can find a recording below. Quoting @jacksondahl Henrik Karlsson returns to Dialectic. One of my 2025 highlights was meeting one of my favorite writers in Copenhagen and interviewing him on my fairly new podcast. It was a fan favorite. This conversation may have topped it. I talked to @phokarlsson about smashing mental models, navigating confusio… Related
9 March
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.
3 February 2025
Machine-learning researcher on open language models; writes the Interconnects newsletter and the RLHF Book, after leading post-training at Ai2.
AGI
Their words
And for that reason, there's physical constraints to things like AGI, like recursive improvement to kill us all type stuff. For the physical reasons and for how humans have figured things out before, I'm not too worried about AI takeover.
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youtube.com
1 February 2024
Mathematical biologist; Senior Lecturer in the Department of Mathematical Sciences at the University of Bath and author of The Maths of Life and Death and How to Expect the Unexpected.
6 June 2023
Software engineer writing about maintenance, open source and the industrial reality of software — the author of "I am not a supplier".
Remove Constraints To Get Results We look at the world and make decisions for our actions through models. Depending on the context, some models will be more fruitful to apply than others. There is a model that I have found tremendously helpful, in parti…
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