Carrying your smartphone around everywhere has become a way of life. In doing so, you produce a surprising amount of data about your role in the economy—where you shop, work, travel, and generally hang out.

The great surprise for people with good ideas is the gap between how an idea feels in their minds and how it feels when they try to put the idea to work.

It’s small enough to fit inside a shoebox, yet this robot on four wheels has a big mission: keeping factories and other large facilities safe from hackers.

On Tuesdays I write about the top-voted question on “Ask Berkun.” This week’s question came from J.R., who wrote: “What is a favorite theory that you wish more people understood?”