A behind-the-scenes interview with Lenny Rachitsky on building his newsletter and podcast

Lenny Rachitsky reveals the psychedelic trip, fraud attack, and childbirth emergency behind building a 1.2M-subscriber newsletter business.

• A psychedelic experience at Joshua Tree — the phrase ‘I have wisdom to share’ repeating for 3 hours — gave Lenny confidence to commit to the newsletter.
• A fraudulent attack tied to a free-year offer for Cursor, Lovable, Bolt, Replit, and v0 went viral in Chinese student networks, triggering coordinated fraud rings and weeks of lost sleep.
• The newsletter paywall launched after 9 months of weekly posts; it generated meaningful revenue within the first month.
• During childbirth, an epidural traveled upward instead of down, stopping Michelle’s heart and lungs; anesthesiologist called it a 1-in-50,000 event.
• Lenny attributes low stress to roughly 70% genetics plus deliberate mindset work, including a UPenn online happiness course that taught baseline optimization.
• Newsletter hit 1.2M subscribers; podcast ranks consistently top 10 in tech — face recognition in public started only after the podcast launched, not after years of newsletter writing.
• Lenny iterates on a newsletter post roughly 50 times before publication, then adds an editor, copy editor, and designer pass.
• His pre-newsletter startup LocalMine (Foursquare-layer Q&A app) was acquired by Airbnb — that’s how he joined and spent 7 years there.

2026-03-12 · Watch on YouTube