Continuing to listen to Voor Adams Tijd (Before Adam), there was an interesting bit in the story where it described how early humans learned things. (And it is well to remember that Jack London wrote this book over 100 years ago.) It, or he, said that early humans were different from other animals mainly in the time that they spent playing. We were the true ‘Labrador Primate’.
Ironically, Sachi was just then doing ballet. The principal came in to bawl at the 3 girls there, just 7 years old.
“Don’t you know your steps better? You’ll never pass the exam!”