[digi_owl]

Makes me hope that "li-fi" pans out.

Basically combo powerline data with rapidly blinking (1000+ hz, iirc) leds to be able to give specific rooms wireless data. And if the light is polarized, a simple coating on the windows that match can let light in, but not data out.

[Natanael_L]

Better yet, directional li-fi through transparent panels on your devices guided by compact adjustable optics.

Example of what tech such optics could use:

Solid-state variable optics: https://www.osapublishing.org/oe/abstract.cfm?uri=oe-18-13-1...

Compact non-conical optics: http://www.nasa.gov/feature/goddard/out-with-the-old-in-with...

[TTPrograms]

Actually need to blink closer to 10^8 Hz :)