Brain Saturation

   Training classes should be no longer per day than 4 hours.

   A bold statement, I know, but the fact is that regardless of the topic, regardless of the skill of the instructor at engaging the class, people just stop absorbing new content after 4 hours.

   I think that even though it would double the total days it took to give a course, students would come out of it with FAR more retained if the days were shortened.