Vitalik Buterin: @jacaissie 72 规则对于发明该规则时常见的回报率更准确（例如，在 8% 时，它几乎完全正确：1.08 ^ 9 = 1.999004 …）对于非常低的利率，70 是最好的。请参阅此处的表格： en.wikipedia.org/wiki/Rule_of_7…

Posted on 2022-12-08

原推：@jacaissie Rule of 72 is more accurate for rates of return that were common at the time when the rule was invented (eg. at 8%, it’s almost exactly correct: 1.08 ^ 9 = 1.999004…)

For very low rates, 70 is best.