![It's a Monkey show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/070/204/small/it-s-a-monkey.jpg)
Summary: <p>Twitter's revenue of $479 million beats expectations of $453 million; SpaceX launches DSCOVER satellite to deep space orbit. We interview Nir Eyal - Author of Hooked: How to Build Habit-Forming Products about the psychology of notifications. </p>