Light is almost certainly the fastest thing around. So it makes sense that "light-based wireless communications," or LiFi, could blow the theoretical doors off existing radio-wave wireless standards, to the tune of a maximum 224GB per second. [Edit, 2:40 p.m.: It does not make sense, and those doors would remain on each rhetorical vehicle. As pointed out by commenters, radio waves, in a vacuum, would reasonably be expected to travel at the same speed as light. Ars, but moreso the author personally, regrets the error. Original post continues.]

JFC is this really where you want to get your technology data from? Authors that clearly have no grasp of even the basest fundamentals in the physics involved? Really?

Isn't this similar to the tech used in fiber optics cables? Or am I way off

There is potential here, despite the early Wi-Fi-via-flashlight awkwardness. While you can't turn a LiFi point entirely off, the signal has integrity at 10 percent room illumination (60 lux), and LiFiCo's FAQ suggests future use of the invisible parts of the light spectrum.

Why didn't they start with IR? IR natural sources? Because artificial sources are your TV remove and security cameras.

So the bulb works at low illuminations but what about light interferences? If you have other light sources, windows?

but... the radio waves used in wifi are... already the same phenomenon as light