"McKinsey & Co. forecast that 45% of today's workplace activities could be done by robots, AI or some other already demonstrated technology."
I'm not quite as pessimistic as some, partly because of something Tyler Cowen pointed out in this NY Times piece:
"There is reason to be skeptical of the assumption that machines will leave humanity without jobs. After all, history has seen many waves of innovation and automation, and yet as recently as 2000, the rate of unemployment was a mere 4 percent. There are unlimited human wants, so there is always more work to be done. The economic theory of comparative advantage suggests that even unskilled workers can gain from selling their services, thereby liberating the more skilled workers for more productive tasks."
Let's at least hope it doesn't come to this: