It will soon be possible for guests at Marriott hotels in China to bypass lines at the registration desk and check in at a kiosk using facial recognition. Halfway across the globe, Marriott workers are going on strike, seeking higher wages and workplace safety.  Artificial intelligence and robotics are at the heart of those highly promising but disruptive innovations. I am speaking today with someone whose index invests in robotics, automation and artificial intelligence companies that are at the heart of those trends.