scarcity-thinking is an attitude as prevalent among the well-heeled as among the down-at-heel, and remains unaltered by a change in circumstances. It is a fatalistic outlook, as profiled by the English economist Thomas Malthus in his 1798 “Essay on the Principle of Population” that predicts that supplies—which appear fixed and limited—will eventually run out. This attitude prompts us to seek to acquire more for ourselves no matter how much we have and to treat others as competitors no matter how little they have.