Habit-forming products are built by creating feedback loops around these components:

1. Triggers:

   Triggers prompt the user to take action.

   1. Internal Triggers: Notifications, Emails, Advertisements
   2. External Triggers: Routines, Boredom, Loneliness, Need for social interaction

2. Action:

   The behavior that user performs in anticipation of reward. The action must be simple and easy to perform.

   Simplicity: Actions must be simpler than thought.

   Factors that affect Simplicity include Time, Money, Physical Effort, Brain cycles, Social Deviance, Non-Routine.

   Reduce Friction as much as possible.

   Motivation + Ability + Trigger must converge for Action to happen.

3. Variable rewards:

   The reward must be kept variable as unpredictability creates excitement.

   1. Tribal Rewards - Likes, Comments, Followers
   2. Hunter Rewards - Scrolling newsfeed, Searching for rewards
   3. Self rewards - Mastering a skill, Completing a task

4. Investment:

   The more a user invests (Time, Money, Data, Effort, Social Capital, Money) in a product, the more likely they are to stick with it.

   Future Triggers: Create future triggers to complete the feedback loop.