There is no conventional transfer of energy into the system: no heating or accelerating of molecules or some such. Instead, information itself seems to be the medium through which energy is transferred.
In the future every home will have one: electronic devices that you can control just by pointing a finger. To turn this vision into reality the 3Plast research consortium is developing special sensors that can be printed onto plastic film and affixed to objects.
I envision a near future, say 5 to 10 years, in which all objects of any value whatsoever will have sensors attached or embedded and where all such objects will communicate with one another instantaneously.
IBM scientists today unveiled a significant step towards replacing electrical signals that communicate via copper wires between computer chips with tiny silicon circuits that communicate using pulses of light. As reported in the recent issue of the scientific journal Nature, this is an important advancement in changing the way computer chips talk to each other.