The fact that he mentions low paying blue-collar jobs such as cooking and building maintenance jobs as being the first to be replaced with robots demonstrates ignorance on his part since certain white collar jobs would be much more cost effective/efficient to automate such as real estate agent, retail salesperson, cashiers, library technicians/archivist, telemarketer and waiter as he mentioned.  Purchasing, programming and maintaining robots that can perform relatively "simple" blue collar tasks is currently much more expensive than hiring someone to do such tasks as opposed to robots that can perform more cerebral functions such as order-taking kiosks used in restaurants, document management software used in libraries, self-checkout kiosks in stores, web-based software allowing for direct access to real estate info, paying a service fee for using artificial intelligence bots such as the IBM Watson for a variety of telemarketing tasks or Google's open sourced SyntaxNet .