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19 September
Software engineer and educator; creator of Testing Library and of the EpicWeb.dev and EpicReact.dev courses.
You can now easily use Jev in @kodykoala: https://t.co/9wowF8KzV9 You can use this when you need typed decisions fast: - An inbox floods in and you need to know which messages are actionable, which can wait, and which are noise. - A support thread arrives and you want the right team, an urgency score, and whether to escalate in one pass. - You're checking a refund against order and policy text and need a clear yes/no with confidence. - Chat or tickets mix bugs, feature asks, and banter; you want a label and whether there’s enough detail to file an issue. - Alerts keep firing and you need “rea… Related
15 September
Founder of Farnam Street (fs.blog) and host of The Knowledge Project podcast. Writes and curates on decision-making, mental models and rational thinking.
Lazy work used to mean too little output. Now, with AI, it often means too much and more work for everyone else. @tobi call it "slop grenades." A "Slop Grenade" is when you let AI produce the work and pass it on without adding any value (including checking it). Someone else has to wade through it, catch the mistakes, and clean up the mess. You save time and look productive but someone else pays for it. Quoting @shaneparrish My third conversation with Shopify co-founder and CEO @tobi. 0:00 How Shopify Uses AI 7:18 River: Shopify's Internal AI 8:55 How to Encourage Osmosis Learning 10:52 AI Dreaming and Self-Reflection 11:53 How to Use AI for Strategic Decision Making 14:11 The One Thing AI Cannot Do 16:04 What AI is Ma… Related
13 September
Economist and journalist; Financial Times columnist as The Undercover Economist, author of How to Make the World Add Up, and presenter of the Cautionary Tales podcast.
I've been checking the source of quotes for my forthcoming book, and the performance of Gemini is extraordinary. I paste the quote into Google, and Gemini will barge in with the wrong answer over and over again. It's not an occasional thing - it's reliably wrong. Very odd. Quoting @TimHarford Twice in past week I've pasted quote into Google to check the source, and Gemini has barged in with the wrong answer. CS Lewis quote from The Seeing Eye (1967) was placed in The Screwtape Letters (1942). Alfred Loftus quote (1857) attributed to Austen Layard (1849). Gemini 0/2. Google Related
9 September
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.
I just interviewed Steve Blank for @startupspod. We focused on how AI is causing founders to build more while learning less. One line that stuck with me about founders building too much, too quickly due to vibe coding: “Polished deliverables hid shallow assumptions.” You can't just build because it's fast and easy. You need to be learning and checking your assumptions before (and while) building. His famous quote, “There are no facts inside the building,” is as true today as ever. This episode will be out in a couple weeks. startups Related
6 September
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).
Reasoning from scratch round 2: In this video, I cover the text generation process in LLMs and KV caching (to prepare the base model before adding reasoning techniques in the upcoming ones). 00:00 Introduction and reasoning model demo 01:55 How to work through the book 05:00 Chapter 2 overview 08:25 Checking PyTorch and hardware support 10:26 Apple silicon and MPS caveats 15:00 Cloud GPU options 16:08 Tokens and tokenization 18:20 Qwen3 and the Reasoning From Scratch package 23:05 Encoding and decoding text 26:24 Downloading weights and selecting a device 31:01 Loading the pretrained Qwen3 mo… LLMs Related
4 September
Machine learning engineer and independent AI consultant. He writes about LLM evaluation, tooling and applied ML at hamel.dev, and previously worked on machine learning at GitHub.
I love how Teresa is merging product discovery with evals. I think its a powerful combination! I started learning about product discovery b/c of Teresa and I think its a great skill for any engineer as it helps you focus on what to build. Highly recommend checking out her work. Quoting @ttorres AI evals have been the "it" skill for product teams for over a year. I've even called evals a new discovery habit. But I still meet product teams who only have a vague idea of what evals are. And it's not their fault. Most of the writing on this topic is intended for engineers or just isn't specifi… Related
2 September
Chilean web engineer building web experiences since 2006; co-founder of Media Creators and writes at iolivares.com.
Yesterday I worked for ~20hs with my agents using Cursor and Claude and when I moved to sleep time I turned on the "autonomous" skill to all my agents. Today, checking the work done, almost 40% was blocked because reasons and when I ask they say "Sorry, my work was left unfinished..." Weird... computation outage? Anthropic Related
26 August
Programmer; makes Handmade Hero and teaches Performance-Aware Programming, and argues loudly about how software got slow.
Their words
What is the underlying hardware capable of doing at its theoretical peak? And then you measure the delta between that theoretical maximum and what you have achieved.
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20 August
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.
14 August
London-based front-end architect, web developer evangelist and cloud consultant; Microsoft MVP. Writes at praveen.science and answers on Stack Overflow.
Did your phone just explode with this severe alert too? 🤔 Literally ran helter-skelter around my place checking for smoke before realising it was a national wildfire warning on my screen. 📲 #UK #EmergencyAlert #PublicSafety #CrisisManagement #UKGovernment #MobileTechnology Related
6 August
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
If you keep adding deadlines without also checking whether the workload itself is sustainable, you risk what I call Obliger-rebellion-the point where an Obliger who has met, met, met, and met expectations suddenly snaps and refuses to meet any more.
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gretchenrubin.com
27 July
Creator of Claude Code at Anthropic.
14 July
Co-founder of Modem and a founding engineer at Sentry, where he went on to be VP of Engineering. Co-author of Third-party JavaScript, and co-host of the State of Agentic Coding podcast with Armin Ronacher.
🎙️ State of Agentic Coding #8 with guest Mario Zechner is out. In this episode: - Vibe-checking Fable & GLM 5.2 - @mitsuhiko.at teaches us RL - How harnesses smooth out model jank - Loops, surviving AI fomo, and more YT: www.youtube.com/watch?v=_lfp... Spotify: open.spotify.com
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2 July
Founder and editor-in-chief of MacStories, writing about Apple software, iPad workflows and automation since 2009. He co-hosts the AppStories podcast.
Their words
Whether you’re a web developer or tinkerer, I highly recommend checking out what Apple has released in Safari Technology Preview.
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macstories.net
29 June
Founder and editor-in-chief of MacStories, writing about Apple software, iPad workflows and automation since 2009. He co-hosts the AppStories podcast.
13 May
Danish software engineer and Microsoft technical fellow, creator of Turbo Pascal and Delphi and lead architect of C# and TypeScript.
TypeScript JavaScript
Their words
So, if we're checking 99% instead of 100%, well, heck, that's better than the 0% that JavaScript checked, right? And it gives you like language features that no other languages can provide because they can't get to 100%.
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22 April
Programmer based in Vancouver who writes at scattered-thoughts.net about databases, programming language design and developer tools; author of the Imp, Dida and Zest language experiments.
7 April
Programmer based in Vancouver who writes at scattered-thoughts.net about databases, programming language design and developer tools; author of the Imp, Dida and Zest language experiments.
Programmer based in Vancouver who writes at scattered-thoughts.net about databases, programming language design and developer tools; author of the Imp, Dida and Zest language experiments.
11 March
Programmer and essayist who has worked at Amazon, Google, Grab and Sourcegraph. Best known for the long-form essays collected as Stevey's Drunken Blog Rants and Stevey's Blog Rants.
16 February
Programmer and teacher; writes on software, learning and the web, and makes the Coding Blocks video course.
22 January
Law professor at Berkeley and the leading scholar of the Fourth Amendment as it applies to computers; writes at the Volokh Conspiracy.
Their words
Given the focus in Coolidge, Shadwick, and Payton on the fundamental role of warrants in inserting a judicial check on the executive, it seems out of place to say that this can be satisfied by the executive checking itself.
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reason.com
7 January
Writer on the intersection of technology and finance. Author of the Bits about Money newsletter and host of the Complex Systems podcast; previously at Stripe.
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
It's a beautiful sweater and 100% wool. So far they're pilling a little (to be expected), so I'll definitely be checking in on this one next year. That price is hard to trust.
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haleynahman.substack.com
9 December 2025
Writer of the newsletter bookbear express, on psychology, relationships, non-attachment and taste; based in San Francisco.
Their words
My Oura ring. I hesitated for a long time but it sparks joy. I think Apple Watches are ugly and I didn't like the Whoop nearly as much. I love checking the app every day.
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avabear.xyz
13 August 2025
Cyborg anthropologist and UX designer; author of Calm Technology and co-founder of the geolocation startup Geoloqi.
Picture yourself checking into a hotel during a work trip. You’re groggy after a long day, but there's a dumb new interface to learn. caseorganic.medium.com
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14 April 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.
20 November 2023
Writer and teacher on productivity and personal knowledge management. Author of Building a Second Brain and founder of Forte Labs, which runs the course of the same name.
Their words
I recommend checking out Nick Milo’s video How to Switch From Evernote to Obsidian if that’s you.
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fortelabs.com
10 September 2023
Researcher and science writer. Co-founder and editor at Works in Progress magazine, formerly a researcher at Our World in Data, and author of the Scientific Discovery newsletter on science, global health and medical innovation.
25 April 2023
Software engineer writing about maintenance, open source and the industrial reality of software — the author of "I am not a supplier".
We Need More Process Engineering in Software When you peruse the depth of software engineering as a discipline, you find a lot of techniques and tools laying around in corners. Pattern matching, tighter type-checking compilers, property-based testing, snappy IDE,…
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3 January 2023
Programmer on the Dart language at Google and author of Game Programming Patterns and Crafting Interpreters; previously a game developer at EA.
Type Checking If Expressions I have this hobby project I’ve been hacking on for several years. It’s a fantasy console, very much inspired by the delightful PICO-8. Like PICO-8, my console has its own built-in scripting language. Because…
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