Ars Technica is reporting on the development of a brain-machine-brain interface. This is officially very cool. Everyone, I presume is familiar with the idea of a brain-machine interface. It's the ye olde trick of putting some sensors in someone's brain and getting them to control something like a computers mouse, by thinking. It's been done many times before. This time though, their working on feedback coming back into the brain. The idea being that if you're an amputee you could get a new limb that you could not only control but that you could feel things with. The brain could register how much pressure the amputee is using to grip something rather than the amputee having to guess based on sight. Or you could use if for remote controlling mechanical limbs in dangerous environments. Or maybe an exoskeleton. Any which way, it's the beginning of proper cybernetics.