Million, Billion, Trillion
(alt-text)You can tell most people donât really assign an absolute meaning to these numbers because in some places and time periods, âbillionâ has meant 1,000x what it's meant in others, and a lot of us never even noticed.
Special 10th anniversary edition of WHAT IF?ârevised and annotated with brand-new illustrations and answers to important questions you never thought to askâout now. Order it here!