I had reason to reflect on Medina's story recently during a dinner. A psychologist who has worked as an advisor to industrial leaders in Sweden was present. So were two children, about 4 years old. The children began sticking their tongues out at each other, just like Medina and his son did. (And triggering mirror neurons, which was one of the things Medina wrote about.)
The psychologist immediately applied the same expertise he uses to advice industrial leaders:
Stop that, or I'll tell a crow to fly by and shit on your tongues!Which approach do you think is more likely to build a better tomorrow?