Joanna Stern was the Wall Street Journal technology journalist for 12 years. She’s an Emmy award winner for her documentary E-Ternal, and recently started her own company New Things, with added advice from ChatGPT! Over the years at WSJ, I relied on Joanna’s reviews of technology for many purchases (and things I avoided) reflecting her keen and brutal assessments. I also had fun working with her on some of her video assessments of health technologies. Her book I AM NOT A ROBOT is both hilarious and highly informative. It is a terrific primer for those who are not fully grounded in AI getting into the history of AI and right up to date with generative AI’s progress.To get a sense for why AI thought she was the next Tina Fey, check out the back cover! No surprise she got me laughing hard throughout the conversation, no less while reading the book.Here is a short YouTube video she posted on her All In AI year of 2025, referred to during the podcast. Much of her testing of 100 AI products related to medicine and health care, which is what we especially got into during our conversation. She has 3 major rules in her assessment of AI: (1) Ruthless testing; (2) Benchmark vs human; and (3) Costs, which include “compute cost” that we discussed. Here are some of the things we covered:* AI of her blood work* AI of mammogram and breast ultrasound, and overall experience as a person with increased risk of breast cancer* AI at the dentist (and ”Dentist Deep Clean”)* Assessment of Dr. GPT* Bill Gates on health AI* Her AI Trainer (Chris)* Waymo vs Uber* Her AI Therapist (Ash)* Nothing Bot Sex (her 2 digital lovers)* Impact on her children (including 6 F*****g Hamsters, the robodog Sirius)A big thanks to Ground Truths subscribers from every US state and 212 countries. Your subscription to these free essays and podcasts makes my work in putting them together worthwhile. If you’re not a subscriber, please join!If you found this interesting PLEASE share it!Paid subscriptions are voluntary and all proceeds from them go to support Scripps Research. They do allow for posting comments and questions, which I do my best to respond to. Please don’t hesitate to post comments and give me feedback. Let me know topics that you would like to see covered.Many thanks to those who have contributed—they have greatly helped fund our summer internship programs for the past two years. It enabled us to accept and support a record number of 51 summer interns coming in 2026! These are high school, college and medical students selected from thousands of applicants. We couldn’t do this expanded program without the funds coming in through Ground Truths.Thank you Tara Parker-Pope, MPH, Tracy Paeschke, MD, FACC, Chip Hughes, Bob Fleischman, Gretchen Faucett, and 400 others for tuning into my live video with Joanna Stern! Join me for my next live video in the app. Get full access to Ground Truths at erictopol.substack.com/subscribe

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“What did the council decide on item 42?” — answered with the speaker and the moment.