That’s an interesting possibility for industrial use-cases where wifi has been used to get flexibility in retrofit installations without needing to pull a hunch if new wires, but has been plagued by interference from heavy equipment.  Although you would need to keep the emitters and receivers clean in the dirtier environments.

This could also be interesting for (some) p2p links, at least those where the IR signal won’t be too adversely impacted by atmospheric dust, fog, and precipitation…

Would it have worked at your yurt lab, Dave? Didn’t that have a few p2p links through the grounds to connect places together?