DARPA, at the behest of the US Department of Defense, is developing a black box brain implant -- an implant that will be wired into a soldier's brain and record their memories. If the soldier then suffers memory loss due to brain injury, the implant will then be used to restore those memories. The same implant could also be used during training or in the line of duty, too -- as we've reported on in the past, stimulating the right regions of the brain can improve how quickly you learn new skills, reduce your reaction times, and more.