The threat of technological unemployment

There is a widely reported threat to our economy: robots are going to replace human workers. It is nothing new… In 1930, Keynes, the famous economist introduced the term "technological unemployment"… We are being afflicted with a new disease of which some readers may not yet have heard the name, but of which they will hear a great deal in the years to come--namely, technological unemployment. This means unemployment due to our discovery of means of economising the use of labour outrunning the pace at which we can find new uses for labour. There is a long Wikipedia article on technological unemployment, where you can learn that people have been concerned about it for centuries… long before we could even imagine robots and computers. It is a recurrent theme of western thought.