Humanoid robots, 3D printers and artificial intelligence (AI) hubs are among the newest technologies showcased at Hong Kong’s annual electronics and technology exhibition, as the city’s finance chief encourages residents to learn how to use them. At the opening of the four-day event on Friday, hundreds of visitors crowded the 22nd Hong Kong Computer and Communications Festival at the Convention and Exhibition Centre in Wan Chai, exploring various AI experience zones and browsing exhibitors’...