A man touches the screen of a 3-D food printer during the Mobile World Congress wireless show in Barcelona, Spain, Tuesday, Feb. 23, 2016. Natural Machines co-founder Lynette Kucsma insisted her company hadn't replicated Star Trek's "food synthesizer" that made munchies appear at Captain Kirk's mere command. But they sure have come pretty close with their 3-D food printer. (AP Photo/Manu Fernandez)