"Software substitution, whether it's for drivers or waiters or nurses … it's progressing. ... Technology over time will reduce demand for jobs, particularly at the lower end of skill set. ... 20 years from now, labor demand for lots of skill sets will be substantially lower. I don’t think people have that in their mental model."
He's not the only one predicting this gloomy scenario for workers. In January, the Economist ran a big profile naming over a dozen jobs sure to be taken over by robots in the next 20 years, including telemarketers, accountants and retail workers.