Machine-Made Jobs, Ctd

Gary Marcus deflates Kevin Kelly's argument:

Personal workbots could, some day, be like cars or cell phones, ubiquitous tools that almost everyone could afford, but they could also be like factories, affording new wealth for the owners, while others are stuck with shovels and seeds. For centuries, it has always been the case that some new jobs are eliminated by technology, while others are created. It’s hard to parse out exactly the role that technology has played, but as Erik Brynjolfsson and Andrew McAfee note in their superb recent book, “Race Against the Machine,” over the last decade throughout the economy, there has been a drop in the employment-to-population ratio and a drop in median wages, and many of the people who lost jobs couldn’t find new ones that paid as well as the ones that they lost.