“The closely held four-year-old startup, which has dozens of employees and has raised tens of millions in venture capital, uses a bracelet to measure neuron activity in a subject’s arm to determine movement that person is thinking about, even if they aren’t physically moving. That neuron activity is then translated into movement on a digital screen.” Bloomberg: Facebook to Buy Startup for Controlling Computers With Your Mind. (Glad we managed to rein them in…)