What I know is usually my biggest problem. Most of us know too much. The problem with knowing how our business is going is that what we know is almost always more of a problem than what we don’t know.

A live appearance takes an unexpected turn when Trump suddenly stops mid-moment, prompting a quick reaction from those around him as the situation unfolds in front of the crowd.

It’s happened to most of us. We suddenly wake up and find ourselves disoriented, wondering where we are, and possibly mistaking a light in the distance for something completely different. Usually it’s ...