“The lowest-paid burger flipper working at McDonald's is in many respects better off than King Henry or any of the richest people living not too long ago. Although the burger flipper barely makes enough to pay the rent, he or she can afford many things that King Henry could not. King Henry's wealth — the entire treasure of England— could not have purchased an indoor flush toilet or air-conditioning or secured a comfortable ride for 500 kilometers. Any taxicab driver can afford these today. Only 100 years ago, John Rockefeller's vast fortune as the world's richest man could not have gotten him the cell phone that any untouchable street sweeper in Bombay now uses. In the first half of the 19th century Nathan Rothschild was the richest man in the world. His millions were not enough to buy an antibiotic. Rothschild died of an infected abscess that could have been cured with a three-dollar tube of neomycin today. Although King Henry had some fine clothes and a lot of servants, you could not pay people today to live as he did, without plumbing, in dark, drafty rooms, isolated from the world by impassable roads and few communication connections. A poor university student living in a dingy dorm room in Jakarta lives better in most ways than King Henry.”