Wireless Data From Every Lightbulb

[Maxmars]

I recall many, many, years ago when a similar application was proposed for using the copper wiring in every household as a carrier for signals... modulated on top of the electricity that ran in them.  Like this one, the theory is quite sound. 

Whether the entrenched tech industry would "shift" towards using it was entirely another.  Shades of electric cars, (or maybe "Tucker's car") apply there, retooling the industry was a no-go then... it would probably be a no-go now.

But still... it can be done...