Knowledge work is famous for very large differences in abilities among workers.15 For example, repeated studies found that differences between the programmers in the top 75th percentile and those in the bottom 25th percentile can be as much as 27 times along some dimensions of programming quality. And my own research has found that large gaps exist between good and bad managers.16 But AI may change all that. In study after study, the people who get the biggest boost17 from AI are those with the lowest initial ability—it turns poor performers into good performers. In writing tasks, bad writers
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