Lenny’s Podcast109 min
Slack founder: Mental models for building products people love ft. Stewart Butterfield
Stewart Butterfield · Nov 20, 2025
Key learnings
- Plot features on a utility curve to see whether extra investment is still on the steep part of the value gain or has reached…
- Judge a product by whether users understand what it does; in many places the real challenge is comprehension, not friction, so…
- Cultivate taste deliberately: taste can be trained, and leaning into craft can become a competitive advantage that less-attentive…