Announcing Signalful I listen to a lot of long interviews and podcasts with founders, investors and operators. Most of them have a dozen compelling insights, buried in 1-2 hours of conversation. I’m excited to announce a new service, Signalful, which distills the best ideas from these interviews into 5-minute executive summaries: numbered signals, each one tied to the timestamp in the video, so you can jump to the source. @signalfulnews is both a 3x-per-week newsletter that delivers these summaries directly to your inbox, and a website that archives all historical summaries. My team and I summarize 50+ podcasts every week, and each newsletter features one - the rest are on the website. Today's featured summary is Alexandr Wang on the @DavidSenra's @founderspodcast Here are three signals from the interview: 1. Meta built Muse, its personal agent, with fewer than 200 people in 7 months. Wang says the small group was on purpose, because a big organization produces a Frankenstein of many PMs' ideas. 2. The 100 Row Spreadsheet: The model team kept a spreadsheet of more than 100 behaviors a personal agent needs, built an eval for each, and trained against all of them. Many checkpoints were green on 80 rows and red on 20. That wasn't good enough to ship. 3. Wang says a modern consumer product has to work as a screenshot, because screenshots travel through group chats. There are 12 signals in the full summary, including his account of the Scale deal with Facebook. New Signalful newsletter editions go out Monday, Wednesday and Friday. Each one has one free summary and several more for paid members. My goal is for Signalful to massively increases signal-to-noise ratio for subscribers. Subscribe at the link below, and follow Signalful at @signalfulnews on X