Stewart Butterfield
Mental models for building products people love ft. Stewart Butterfield, covering product design, B2B products, and consumer products.
Episode
Slack founder: Mental models for building products people love ft. Stewart Butterfield
Summary
Stewart Butterfield, co-founder of Slack and Flickr, shares mental models for building products people love — arguing truly great products must embarrass their creators because they can see every flaw, and that the only real measure of success is actual value created for customers. He makes a counterintuitive case that friction is often valuable and reducing clicks is almost always the wrong optimization.
Key Takeaways
If you can't see "almost limitless opportunities to improve" your own product, you shouldn't be designing it. Perpetual productive dissatisfaction is a core product design virtue.
Friction is often load-bearing: it creates commitment, signals intent, and filters passive from active engagement. Ask which friction is waste and which is doing real work.
Reducing clicks is almost always the wrong target — great design is progressive disclosure: surface the 2-3 most common things, then hide complexity behind a secondary layer.
The long-run measure of success is actual value created for customers — not demonstrated, packaged, or signaled.
When users ask for a feature they are describing a solution, not a need. Always go deeper to find the emotional job they are trying to accomplish.
Notable Quotes
“To me that was like, "You should be embarrassed." If you can't see almost limitless opportunities to improve, then you shouldn't be designing the product.”
“The decision is about have you exhausted the possibilities? Creating the distance so that you can make an intellectual rational decision about it rather than an emotional decision is essential. And the reason I say you have to be coldly rational about it is because it's fucking humiliating.”
“And the challenge is that people, A, I think this is evolutionary biological. It's hard for us to understand the world, except by anthropomorphizing it. And so if it didn't rain this year, it's because a God is mad, and probably because we didn't sacrifice enough goats or something last year. It's hard for people to understand just that, wow, weather is incredibly complex and chaotic, and ecosystems and climatology, and all that.”