[MichaelSalib]

Around 2003 at MIT I spoke with a guy who told me about a home lighting system that the French were using. Basically, you take an entire wall in a house and sandwich thin conductive layers between insulator layers. Then you have these special light fixtures with a sharp pronged tip that exposes three different wire heads at different lengths.

You just stab one of these fixtures into the wall anywhere you want; each of the three prongs travels to a different depth and makes contact with a layer representing the hot, neutral, and ground lines so that your light fixture is now plugged into 220 Volt wall socket current.

At the time, I remember saying "that sounds totally insane". I still think it is. But if you made a special map backing board rather than entire walls and ran a lot less power through it....