Berlin · nxhx.org · joe@meaningalignment.org @edelwax · GitHub · Google Scholar
In preparation: manuscripts in metaethics and action theory; political theory and institutional design; and mechanism design.
2007–2009 CouchSurfing International Reputation Systems & Metrics Joined when the site had ~100k active users. Developed the meaning-based organizational metrics that became the north star for the company and the primary criterion for feature rollouts, tracking tens of millions of in-person hosting experiences. Built the reputation and trust system, including ML models for user safety. [metrics writeup]
2013–2015 Center for Humane Technology Co-founder Co-founded CHT with Tristan Harris. Led research on the design of healthier social-media ecosystems. Coined “Time Well Spent,” a framing and family of metrics subsequently adopted by teams at Facebook, Google, and Apple. Published mockups and designs for user-protection interventions that closely prefigured what later shipped as iOS Screen Time and Downtime. Briefed policymakers on political polarization, social isolation, declining trust, and internet addiction. Departed when the research track was moved outside CHT's scope.
2015–2020 Independent Researcher Funded by Patrick Collison and Stripe. Delivered the influential talk “Is Anything Worth Maximizing?”, which led to recommender system changes at Facebook, Apple, and Google. Developed the philosophical foundations of new business metrics and design methods.
2017–2022 School for Social Design Founder Online training for humane recommender systems. Trained product, metrics, and UX practitioners from Google, Facebook, Twitter, Notion, and other companies in values-based data science.
Selected interviews: Jim Rutt Show (EP 325: Full-Stack AI Alignment, 2025; Currents 080: Rebuilding Meaning with Ellie Hain, 2023); RadicalxChange Podcast with Matt Prewitt (2024); Clearer Thinking Podcast with Spencer Greenberg (2024).
Dartmouth College, A.B. Computer Science & Modeling, 2003 (enrolled 1999) Studied participatory music with Christian Wolff and playwriting with Peter Parnell.
MIT High School Studies Program Took MIT coursework for credit (later applied to Dartmouth degree); mentored by Howie Shrobe and Marvin Minsky.
Last updated: April 2026