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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
Founder of Terraform Industries and formerly a physicist at NASA's Jet Propulsion Laboratory; writes about energy, space and manufacturing.
How deep is Tulainyo Lake? Regular readers may recall that I put a visit to Tulainyo Lake on my bucket list a few years ago. Last week I did it. Impossibly remote, otherworldly beauty, and an enduring mystery. Just how deep was this lake? Wikiped…
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19 September
Dutch bootstrapper who builds and runs their internet startups alone — Nomads.com, Remote OK, Hoodmaps, Photo AI and Interior AI — and has written about it at levels.io since 2013. Posts as @levelsio.
Their words
you gotta cut out regular milk chocolate, you're eating mostly sugar, it's not good for you
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@levelsio on X x.com
18 September
Economics writer; author of the Noahpinion newsletter.
Their words
Keep broadcasting the dipshit things they say. Warn regular people of the rot on the left.
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@Noahpinion on X x.com
17 September
Writer of kottke.org, one of the oldest blogs on the web, published since 1998 and supported by its members. He writes about art, technology, science, design and visual culture.
Mastodon This is fun: Red Bull took over one of the karting tracks at Silverstone (home of the British Grand Prix), put 100 regular folks in karts, positioned four-time F1 champ Max Verstappen at the back of the pack, and gave him 75 minutes to pass everyone. kottke.org
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Bluesky This is fun: Red Bull took over one of the karting tracks at Silverstone (home of the British Grand Prix), put 100 regular folks in karts, positioned four-time F1 champ Max Verstappen at the back of the pack, and gave him 75 minutes to pass everyone. kottke.org
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Blog Max Verstappen vs. 100 Normies in Go-Karts This is fun: Red Bull took over one of the karting tracks at Silverstone (home of the British Grand Prix), put 100 regular folks in karts, positioned four-time F1 champ Max Verstappen at the back of the pack, and gave h…
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15 September
Author of The 4-Hour Workweek and Tools of Titans, and host of The Tim Ferriss Show podcast.
7 Quotes on Writing I hope you enjoy the following gems as much as I have… “Write to please just one person. If you open a window and make love to the world, so to speak, your story will get pneumonia.” — Kurt Vonnegut “You must stay drunk on writing so reality cannot destroy you.” — Ray Bradbury “Be regular and orderly in your life like a bourgeois, so that you may be violent and original in your work.” — Gustave Flaubert “The writer should never be ashamed of staring. There is nothing that does not require his attention.” — Flannery O’Connor “A writer is unfair to himself when he is unable… Related
Programmer and technology writer known for his long Mac OS X reviews at Ars Technica; co-hosts the Accidental Tech Podcast and Hypercritical.
After being bounced back and forth multiple times between regular Apple support and Apple Developer support, both claiming that this is the other party's problem to solve, I am now looking for anyone at Apple who can put me in touch with the folks that control the system that "locks" Apple Accounts for security reasons. The Apple Account locking system is a thing that exists! Someone controls/manages it! Please let me talk to them! See this thread for context: Related
14 September
Former L8 engineer at Meta, Microsoft and Atlassian, now writing and building solo on agentic engineering. Writes Kun's Field Notes and posts a lot about AI coding agents on X.
this thing was widely reported as “the end of programming” in 1981 https://t.co/j0cok5NZKf right before that, in 1960s, people thought COBOL would allow everyone to build whatever software they wanted and there’s no need for programmers now the same people in the same bubble think agents will finally end it, because they spent a weekend and got impressed by how quickly the agent could produce a toy. now they think that’s how everyone wants to spend their weekends open your eyes - most regular humans don’t even want to talk to an agent Related
5 September
Mathematical physicist at UC Riverside. Wrote This Week's Finds in Mathematical Physics and now the Azimuth blog on mathematics, physics and environmental science.
Here's some crazy geometry in 4, 5 and 6 dimensions: The 4-demicube has 8 vertices. It lives in 4 dimensions. You get it from a 4-dimensional cube - which has 16 vertices - by keeping every other vertex, throwing away half. That leaves 8. What are its top-dimensional faces, aka 'facets'? Surprise: there's only one kind! All of them are regular tetrahedra. In higher dimensions the demicube has two kinds of facet - one from the cube's corners, one from the cube's facets. But in 4 dimensions the two kinds happen to be the same shape: the tetrahedron! That's why the 4-demicube is especially symme… Related
1 September
Dutch bootstrapper who builds and runs their internet startups alone — Nomads.com, Remote OK, Hoodmaps, Photo AI and Interior AI — and has written about it at levels.io since 2013. Posts as @levelsio.
SaaS
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A regular boring but non-superficial SaaS app would do well 5 years ago but now it might not get anyone to sign up because it's so easy to vibe code by tens of thousands of other people
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@levelsio on X x.com
22 August
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).
A couple of days ago, I did a quick explainer on Claude’s new watermarking process and implementation. Since it’s such a popular topic and sparked such a lively discussion, I thought it might be interesting to go into a bit more detail when explaining how it works. So, instead of the usual text article, I recorded a little lecture on the topic (to change it up a bit from my usual articles). It ended up a bit longer than intended, but I hope it clarifies a lot of things: - Sampling the next token in an LLM and pseudorandom number generators - How watermarking relates to the regular LLM samplin… LLMs Anthropic Related
20 August
Writer, editor and executive coach; co-founder and editor of A Book Apart and a former contributing editor at A List Apart.
Mastodon Semi-regular reminder that my posts do not originate in the likely place that you are reading them. I wrote about why I keep my distance here: aworkinglibrary.com
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Bluesky Semi-regular reminder that my posts do not originate in the likely place that you are reading them. I wrote about why I keep my distance here: aworkinglibrary.com
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12 August
Maths educator; writes Mathworlds on how mathematics is taught and why so much of the technology sold to schools does not help.
30 June
Writer on happiness, habits and human nature. Author of The Happiness Project, Better Than Before and The Four Tendencies, and host of the Happier with Gretchen Rubin podcast.
Their words
Research shows that children are far better able to sit still, focus, and learn when they've had the exercise, sunlight, freedom, and fun of recess. The same is true for adults.
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gretchenrubin.com
29 June
Writes Pedestrian Observations on public transit and why infrastructure costs what it does; a pure mathematician by training, comparing how different countries build.
11 May
Co-founder of AngelList. Writes and podcasts at nav.al in short, aphoristic pieces on startups, wealth and judgement rather than long essays.
Sell the Truth Hi, you’re listening to the Naval Podcast. This is his regular co-host, Nivi. There are only two skills you have to have in life: How to build and how to sell. Today we’re going to talk about the sales side. Naval is a…
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28 April
Co-founder of AngelList. Writes and podcasts at nav.al in short, aphoristic pieces on startups, wealth and judgement rather than long essays.
14 December 2025
Writer living in Brooklyn and former Man Repeller features director; writes the weekly newsletter Maybe Baby on culture and consumption.
Their words
We now have two custom IKEA storage cabinets in our house (one in our bedroom and one in our living room). For both, we chose to have basket drawers on the bottom, one regular drawer in the middle, and shelves above that—the perfect setup for clothes and home goods IMO.
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haleynahman.substack.com
9 December 2025
Vice chairman of Ogilvy & Mather Group, the advertising agency; author of Alchemy (2019) and the Wiki Man columnist at The Spectator.
Their words
the dorman was doing multiple things, many of which were human and kind of tacit. Security would be one. You know, there are no vagrants to sleep in the doorway, hailing taxis, dealing with luggage, recognizing regular guests, providing status to the hotel. There are loads and loads of value creation components to that dorman which aren't captured in the open the door definition.
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youtube.com
21 November 2025
Computer performance engineer working on datacenter performance at OpenAI, previously Netflix and Sun/Joyent. Author of Systems Performance and BPF Performance Tools, and creator of flame graphs.
21 October 2025
Software engineer who writes the blog Made of Bugs about performance, debugging and understanding computer systems. Previously worked at Anthropic on interpretability, at Stripe on Sorbet, and at Ksplice.
Solving regex crosswords with Z3 For a while now, I’ve been fascinated by Z3 and by SMT solving more broadly. While on pat leave recently, I was reminded of the existence of regular-expression crossword puzzles, and allowed myself to get nerdsnip…
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7 July 2024
Member of technical staff at Anthropic. He has led ML/AI teams at Amazon, Alibaba and Lazada, and writes about LLMs, recommender systems and engineering at eugeneyan.com.
8 December 2023
Software engineer who writes the blog Made of Bugs about performance, debugging and understanding computer systems. Previously worked at Anthropic on interpretability, at Stripe on Sorbet, and at Ksplice.
I got nerdsniped much harder than intended by Advent of Code and so here's a writeup of how to process a 20,000 element list in C++ template metaprogramming without blowing your compiler's stack, and also about manually compiling a regular expression into a compile-time state machine. Sorry but also not sorry: blog.nelhage.com
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1 December 2022
Engineering leader and writer on web operations and resilience engineering; formerly SVP of Technical Operations at Etsy and co-author of Web Operations.
Hi @MTA this UX is misleading. The turnstile didn’t take @OMNY_Info but *did* allow entry via regular MetroCard. “NO ENTRY” is wrong. Related
Nothing matches. Show everything
A korrent is a belief a person has stated in their own words: one
sentence stating the claim, backed by a quote and a source, kept at
korrents.com .
Under a name here, the quoted block is what they actually said.
The korrent beneath it is the claim those words support, in
korrents' wording — tap it to see the record, its source, and who
else holds it.
Nobody here wrote their own korrents. They are compiled from public
statements, and a person can change their mind, which is recorded too.
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About the English under a post
Some people here publish in a language other than English. Where they
do, this site shows a machine translation beneath the post, in
this typeface — the site's own, not theirs.
The post itself is never changed, moved or hidden: what is set in the
serif above is exactly what the person published, and it is what to
quote them on. A translation can be wrong in ways that matter,
especially about tone.
Only the post's own words are translated. A quoted post, a linked
article and a belief on korrents.com
are left in their original language.
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