Out of a human population on earth of four and a half...

Out of a human population on earth of four and a half billion, perhaps twenty people can write a book in a year. Some people lift cars, too. Some people enter week-long sled-dog races, go over Niagara Falls in a barrel, fly planes through the Arc de Triomphe. Some people feel no pain in childbirth. Some people eat cars. There is no call to take human extremes as norms.