Kent Beck is the creator of Extreme Programming (XP) and a pioneer of Test-Driven Development, pair programming, and the Agile Manifesto. A programmer with 52+ years of experience, he co-created JUnit with Erich Gamma, co-invented CRC cards and design patterns in software with Ward Cunningham, and spent seven years coaching at Facebook. Today he runs the 'Software Design: Tidy First?' Substack newsletter (123,500+ subscribers in 195 countries), hosts the Still Burning podcast, and explores augmented human-AI coding. In April 2026 he publicly announced a Parkinson's disease diagnosis, continuing his mission to help technologists feel safe in the world.
Lior Abutbul is an AI practitioner and newsletter writer focused on the frontier of agentic AI systems. Through the Agentic AI Weekly newsletter, Lior breaks down how autonomous AI agents work, where they're headed, and how builders and operators can put them to use today.
Timothy B. Lee is an independent AI journalist and newsletter writer who runs Understanding AI, a Substack newsletter with over 263,000 subscribers that explains how artificial intelligence actually works - minus the hype and minus the doom. Drawing on a rare combination of a computer science master's from Princeton, two decades of tech policy reporting at outlets like Ars Technica, the Washington Post, and Vox, and an instinct for clear, jargon-free prose, Lee has become one of the most-read independent voices in AI journalism. His superpower is translating complex machine learning concepts into accessible explainers that neither oversell nor undersell the technology.
Dean Ball is a leading AI policy scholar, writer, and former White House advisor who shaped America's AI strategy from the inside. As Senior Fellow at the Foundation for American Innovation, co-host of the AI Summer podcast, and author of the widely-read Hyperdimensional newsletter, he makes the case for market-driven, light-touch governance of frontier AI - arguing that private governance mechanisms, not government mandates, are the right framework for the most transformative technology of our time.
Charlie Guo is a Stanford and YC alum who turned a personal obsession with AI into a 23,000-subscriber newsletter and a Developer Experience role at OpenAI. Through Artificial Ignorance at ignorance.ai, he writes at the intersection of software engineering and artificial intelligence - cutting through hype to deliver practical, hands-on insights for builders. He has co-founded multiple startups (ClassOwl, FanHero, Crowdmade), published a book of startup interviews called Unscalable, and created a widely-used Python library for Gmail with 1.8k GitHub stars - all while teaching himself AI engineering through relentless experimentation.