These are cool, however they will always be more limited than BCIs hooked directly into the brain. A few bits/sec might be your throughput with the former. I t

These are cool, however they will always be more limited than BCIs hooked directly into the brain. A few bits/sec might be your throughput with the former. I think EEG (external, that is) device will be really important in controlling things that have very low entropy. For example, clicking start and choosing an item from the list is something that could be achieved with these. But, for example, writing a response to someone would be infeasible. At some point, if VR goes mainstream, then people will be accustomed to having to wear something dopey on their heads! This would be a perfect "in" for EEG technology and the kinds of simple examples I mentioned. Maybe a future where we "think" to choose apps to use isn't too far off. I believe "thinking" to call people will be very trivial with EEG devices if your brain does a sufficiently different thing depending on who you think about -- which I have no reason to doubt.