Comment by arijun

Which Li-fi people? AFAICT there are several groups, and li-fi.co (which I'll assume you're talking about) is less advertising for one specific group, and more advocating for the technology as a whole.

> They claim visible light travels faster than radio waves

I wasn't able to find it on the lifi website but seems like some poor copywriter got something wrong

> their thousand dollar router can only do 100Mb/s

Who's they? In any case, since lifi.co is advocating Li-Fi as a whole so it makes sense they talk about theoretical speeds, whereas a specific router from some manufacturer might not be able to reach those speeds, considering how new the technology is

In the end, I imagine Li-Fi doesn't have much of a future outside of niche markets because it has to compete with wifi which is everywhere (and it can't supplant wifi because e.g. it doesn't work in your pocket)