"The important invention in a way for the human species was grandparents. Grandparents were the beginning of culture when we could sit around the cave fire and

"The important invention in a way for the human species was grandparents. Grandparents were the beginning of culture when we could sit around the cave fire and the grandparents would sing songs to the children and the parents would be out hunting so having three generations was what made us what we are." That's a sharp observation. Sharper yet what it leaves unsaid about the present.