Wharton professor, clearest AI-for-practitioners writer
Ethan Mollick
Profile
Ethan Mollick is an Associate Professor at the Wharton School of the University of Pennsylvania, where he studies innovation and entrepreneurship — and, since late 2022, has become one of the clearest explainers on the planet of what generative AI actually means for people who have to get work done. If you want a grounded, practitioner-level read on how knowledge workers can and should use frontier models, Mollick is the first link in the chain.
His One Useful Thing newsletter on Substack has grown to hundreds of thousands of subscribers by doing something rare: taking research seriously, running experiments in the open, and refusing both the doomer and hype poles. He coined the “jagged frontier” — the observation that AI is shockingly good at some tasks and shockingly bad at others, with no clean way to know which is which without using it — along with the Centaur vs. Cyborg distinction for how people divide labor with AI. Both framings have escaped the academic literature and become common shorthand.
His big empirical contribution is the 2023 Boston Consulting Group field experiment with collaborators at Harvard, MIT, and Warwick: 758 consultants, randomly assigned to use GPT-4 or not, with measurable tasks graded by humans. Consultants using AI completed 12% more tasks, 25% faster, and produced 40% higher-quality output — with the largest gains going to the weakest performers. This is one of the few pieces of rigorous evidence we have on real productivity impact, and Mollick has spent the years since pushing organizations to actually run their own versions of it.
He wrote Co-Intelligence: Living and Working with AI (2024), a New York Times bestseller and one of the few AI books you can hand to a non-technical colleague without apology. A follow-up, Beyond the Jagged Frontier, is on the way. He was named to TIME’s 100 Most Influential People in AI in 2024. For developers learning AI: his stuff is not about how the models work — it’s about what happens when smart humans actually try to use them for real jobs. That’s a gap worth filling.
Books
Co-Intelligence: Living and Working with AI A practitioner's guide to treating AI as a co-worker, co-teacher, and coach — the book to hand to a non-technical friend who wants to actually understand what LLMs are good for. Beyond the Jagged Frontier Follow-up to Co-Intelligence covering agents and the next phase of working, learning, and living with frontier AI. The Unicorn's Shadow Mollick's pre-AI book — myth-busting advice for startups and founders grounded in entrepreneurship research.Key Articles & Papers
Navigating the Jagged Technological Frontier: Field Experimental Evidence of the Effects of AI on Knowledge Worker Productivity and Quality Centaurs and Cyborgs on the Jagged Frontier Working with AI: Two Paths to Prompting Innovation Through Prompting I, Cyborg: Using Co-Intelligence Real AI Agents and Real Work Management as AI Superpower The Future of Education in a World of AI Cyborgs, Centaurs and Self-AutomatorsVideos
Spotify Podcasts
