“Maybe an example Joseph gave us would make this clearer. It had to do with a study that was done with two comparable basketball teams. Team A was coached with an emphasis on preventing mistakes on the court. Day after day, they reviewed videos that focused on their errors. Those mistakes got grooved in their brains. By contrast, Team B was coached with an emphasis on building on their successes. Day after day, they reviewed videos that focused on their most successful plays. So Team B’s successes got grooved in their brains. “To put it simply, Team A focused on what was wrong. Team B focused on what was right. I’m sure you can guess which team had the greatest improvement by the end of the season.”