为此，以收入为基础的所得税应该被慷慨的负所得税所取代，这是经济学家米尔顿·弗里德曼（Milton Friedman）几十年前提出的一个想法 — — 当时机器人还只是科幻小说里的玩意儿。
To that end, the earned-income tax credit should be replaced by a generous negative income tax – an idea that the economist Milton Friedman proposed decades ago, when robots were still the stuff of science fiction.