Dr Povey's group is already up to 130 megabits a second (faster than some older Wi-Fi routers) over a distance of about two metres, using standard LEDs.
Researchers in China recently showed that, using a one-watt LED bulb, li-fi could connect four computers to the Internet at data transfer rates up to 150 megabits per second.
Now let's continue exploring how a powerful beam can be continuously swept across the sky and then how we fill it with hundreds of megabits of data every second.
Several large companies, like Google, Facebook, and Space X, are already working together on a project that will bring the Internet to everyone on the planet at speeds over 1 megabit per second.