The truly great consumer technology companies of the past 25 years have all had one thing in common: they created habits. This is what separates world-changing businesses from the rest. Apple, Facebook, Amazon, Google, Microsoft, and Twitter are used daily by a high proportion of their users and their products are so compelling that many of us struggle to imagine life before they existed.

Hooking Users In 3 Steps: An Intro to Habit Testing | Nir and Far.