All content for The Business Book Club is the property of The Business BookClub and is served directly from their servers
with no modification, redirects, or rehosting. The podcast is not affiliated with or endorsed by Podjoint in any way.
Ep 98 Hooked: The Psychology Behind Products People Can’t Quit
The Business Book Club
10 minutes
1 week ago
Ep 98 Hooked: The Psychology Behind Products People Can’t Quit
Episode Summary
In this episode of The Business Book Club, we dive into Hooked: How to Build Habit-Forming Products by Nir Eyal—a game-changing guide to designing products that don’t just get used but become part of users’ daily routines.
We pull apart the Hook Model, a deceptively simple four-step loop that powers the world’s most addictive apps and tools—from Instagram to Evernote. This episode isn’t just about grabbing attention—it’s about engineering behavior ethically, and using habit design as a force for good.
If you're building a product and want it to become indispensable, this episode is your blueprint.
Key Concepts Covered
🔄 The Hook Model: 4 Steps to Habit Formation
Trigger – Starts the behavior. External (e.g. notifications) or internal (e.g. boredom, loneliness).
Action – The simplest behavior in anticipation of a reward. Think: tapping an app icon.
Variable Reward – The dopamine-driving uncertainty that keeps users coming back (likes, news feeds, achievements).
Investment – The user puts something in (time, data, effort), which increases value and sets up the next trigger.
📱 Internal vs External Triggers
External: Notifications, emails, app icons.
Internal: Emotional itches like boredom, anxiety, or curiosity that subconsciously drive engagement.
“When the product becomes the solution to an internal pain point, the habit is born.”
🎰 The Power of Variable Rewards
Tribe: Social rewards (likes, comments, followers)
Hunt: Information, deals, content (scrolling news feeds, shopping)
Self: Mastery and completion (gamification, inbox zero, progress bars)
💾 The Genius of Investment
Investments increase switching costs (e.g. your follower list, playlists, saved content)
They also load the next trigger, creating a self-reinforcing loop
“What tiny investment can your user make today that makes your product harder to leave tomorrow?”
Actionable Takeaways
✅ Design for SimplicityRemove friction. Make the first action as easy and intuitive as possible.
✅ Scratch a Real ItchThe best products solve emotional problems. Identify the internal trigger you're addressing.
✅ Use Variability WiselySurprise and delight—don't just inform. Build reward systems that keep users curious.
✅ Ask for Investment EarlyEven a small commitment (like a saved search or profile setup) boosts retention and sets the next trigger.
✅ Be a Facilitator, Not a ManipulatorDesign ethically. Only build habits you’d want in your own life—and that genuinely help your users.
Top Quotes
📌 “Users form habits when products become the go-to solution for their internal triggers.”📌 “You don’t win by being better. You win by becoming a habit.”📌 “A user invested in your product today is more likely to return tomorrow.”📌 “A habit-forming product isn’t used—it’s lived.”📌 “The most ethical companies use habit design to materially improve people’s lives.”
Resources Mentioned
📘 Hooked: How to Build Habit-Forming Products by Nir Eyal – Get the book here
Final Thought
If you're building something and hoping users stick, habit is your moat. The Hook Model gives you a practical, repeatable framework to turn occasional users into loyal, long-term fans.
But with that power comes responsibility. So ask yourself:What habit are you helping form? And is it worth forming?
#HookedBook #HabitFormingProducts #NirEyal #ProductDesign #BehaviorDesign #UserEngagement #BusinessBookClub #StartupTools #Retention