More than a half-century ago, I graduated from a normal high school. By normal, I mean that we had to learn a few things. To do that, we needed to learn first how to be efficient in fulfilling tasks given to us. Instructions on how to do that were probably no longer than 1,500 seconds. It included more than Alfred learned during 1,500 hours.

A conclusion for young readers still in school: It takes an hour to learn later in life what you miss learning in school during one second.