This year at CES, the big electronics and tech show in Las Vegas held every January, the kickoff keynote presentation for the first time was by an airline CEO, Delta Air Lines’ Ed Bastian. He talked about how tech should help take the stress out of flying and, of course, make you want to pay more to fly Delta. The airline announced a few new features, like updates to its app to include other parts of the trip, like ride-share and hotel. Also, artificial intelligence to improve scheduling, investment in updating airports, including something called “parallel reality” and high-tech displays in airports that can show personalized flight information to lots of different people at the same time.