I believe in this context Li-Fi was either added by the journalist or mentioned to the journalist to make him/her understand the idea better. But this technolog

I believe in this context Li-Fi was either added by the journalist or mentioned to the journalist to make him/her understand the idea better. But this technology is literally just flashing LEDs and reading it with a camera, which turns out to be annoyingly slow. Let's say they use IR (article talks about projector and RGB) to hide the flickering, you still need to put a lamp on every product where I already have a barcode, a price-tag, an information card and whatnot. Then we will put up a massive arrow that says "point your phone here!" On a monthly basis I see people come up with "innovative" shopping experiences. In fact I personally know 2-3 people who worked on projects like this, but did anyone actually figure out what content to put on the screen? Anyone here ever pointed a phone at a barcode/qr-code for any other reason but syncing up google authenticator? But let's say we really would like to walk through macy's by staring at our phone instead of looking at the boots. Why not just use something standard and readily available in every phone that matters, like NFC/BTLE? I understand someone probably got the homework at Fujitsu Labs to innovate and I must admin I have worked on similiar technologies before and it's a lot of fun. But especially because I have seen this idea so many times, but never seen it adapted by a single store, I am skeptical about the existence of the problem.