Sapiens: A Brief History of Humankind

by Yuval Noah Harari

Samuel Greedy, a shrewd financier, founds a bank in El Dorado, California. A. A. Stone, an up-and-coming contractor in El Dorado, finishes his first big job, receiving payment in cash to the tune of $1 million. He deposits this sum in Mr Greedy’s bank. The bank now has $1 million in capital. In the meantime, Jane McDoughnut, an experienced but impecunious El Dorado chef, thinks she sees a business opportunity – there’s no really good bakery in her part of town. But she doesn’t have enough money of her own to buy a proper facility complete with industrial ovens, sinks, knives and pots. She goes to the bank, presents her business plan to Greedy, and persuades him that it’s a worthwhile investment. He issues her a $1 million loan, by crediting her account in the bank with that sum. McDoughnut now hires Stone, the contractor, to build and furnish her bakery. His price is $1,000,000. When she pays him, with a cheque drawn on her account, Stone deposits it in his account in the Greedy bank. So how much money does Stone have in his bank account? Right, $2 million. How much money – cash – is actually located in the bank’s safe? Yes, $1 million. It doesn’t stop there. As contractors are wont to do, two months into the job Stone informs McDoughnut that, due to unforeseen problems and expenses, the bill for constructing the bakery will actually be $2 million. Mrs McDoughnut is not pleased, but she can hardly stop the job in the middle. So she pays another visit to the bank, convinces...