Wireless access to the Internet is booming, but that also leads to severe congestion of the airwaves. In fact, most complaints about poor WiFI have little to do with poor coverage but rather are caused if too many people use WiFi at the same time. The EU Horizon 2020 ELIoT project is an Innovation Action to use light to communicate. These signals do not go through the wall and that turns out to be a major advantage: you are not affected by interference from others. It gives latency-free connections. Peter Simons of Radio4Brainport.org interviews the ELIoT project leader Prof. Jean-Paul Linnartz.