In honor of Mobile World Congress, which may hit 100,000 this year if the transport strike does not crash the whole thing, everyone is running stories on 5G. Why not us? The work is being done at the University of Surrey, where a leafy campus is dotted with rundown Brutalist-style buildings. Here, researchers and some of the world’s biggest tech companies, including Samsung and Fujitsu, are collaborating to offer mobile Internet speeds more than 100 times faster than anything now available. Their work on so-called fifth-generation, or 5G, wireless technology is set to be completed in early 2018 and would, for example, let students download entire movies to smartphones or tablets in less than five seconds, compared with as much as eight minutes with current fourth-generation, or 4G, technology.