Habit-forming products often start as nice-to-haves, but once the habit is formed, they become must-haves.
Nir EyalFogg states that all humans are motivated to seek pleasure and avoid pain; to seek hope and avoid fear; and finally, to seek social acceptance and avoid rejection
Nir EyalCompanies leverage two basic pulleys of human behavior to increase the likelihood of an action occuring: the ease of performing an action and the psychological motivation to do it.
Nir Eyal