Hooked How To Build Habit-forming Products By Nir Eyal Pdf Official

3️⃣ The heart of the habit loop. The user gets a reward, but it’s different every time (uncertainty spikes dopamine).

This is the most cited section of the . Why do we get bored of slot machines but never bored of Twitter? Because of predictable vs. variable rewards. If you reward a dog with a treat every time it sits, it will sit when hungry. If you reward it sometimes , it will sit obsessively (variable reinforcement schedule). Eyal outlines three types of variable rewards: hooked how to build habit-forming products by nir eyal pdf