I was listening to the Tim Ferris interview with Marc Andreesen and he said that some econ group (World Economic Forum??, World Bank?) did a study saying that automated systems would destroy 5,000,000 jobs by 2020.
He put this in perspective by saying that the US economy destroyed 21,000,000 jobs last year and created 23,500,000. He pointed out that the rate of job destruction in the US has actually slowed over the last 50 years. So he doesnt' see a problem.
To me, he is missing the thing Ray Kurzweil says everyone misses - potential for exponential growth. Will the exponential growth in job destruction be matched by exponential growth in job creation?