... deployed by the messaging software and many other products is composed of:

... towards doing something can be external, like a ‘click here’ button, or internal, like an emotion or craving. A successful trigger graduates from being an external one into something inbuilt in the user.

Phones became smart more than a decade ago and started doing almost everything.

There is a push provided to the user to ‘invest’ in the service so that there are variable rewards in the future. This can be anything from uploading a new profile picture to set a status update for all to see.

• BF Skinner, a psychologist, found that if an action gives a variable, unpredictable reward, it is more frequently used and is addictive.
• Like a slot machine, the reward is not something that the user knows beforehand, providing a sense of wonder, intrigue and mystery.
• In t...

Any trigger, be it a text message notification or an emotion, prompts a user to take some action, like opening the app or clicking a button.