Despite my bs-filter having toned it down and given me just the facts that it's 3 people in a room with wires on their head playing tetris, with 2 looking at lightbulbs to send signals, it's still got me pumped.
I really believe BCIs be game changers in the way we communicate with electronics (if not other humans), and I for one would love to play a game of tetris over the internet with an unknown mind.
Edit: even in its current transmission rates, I think this tech could have far reaching implications in a better form factor. 1 slow bit is all I need to take a picture, lock/unlock my car, flip the light switch, turn the tap, open/close the door, Start the washing machine, turn the tv on, start the car, close the window, etc.
This is coming. So fast.
Hooking up a portable BCI to a raspberry pi-equivalent as an intermediary should be all we need to really start connecting the brain electronically to the outside world in useful ways.
It's not really tetris, it's so simplified as to be reduced to a simple press/ don't press action.
Also, the whole contraption is the union of two separate devices: an input device that picks up a single codified signal from an EEG (but could simply and more effectively track eye movements for the same result); and another one that produces a visible flick of light in a person's FOV- albeit not passing through the retina. That's it. It doesn't "transmit thoughts" at all, it transmits coded signals at a much slower rate than me typing on a keyboard right now.