Indeed, it's a nice setup but it's not what you expect from the title.

You cannot put on a cap with three people and then start playing a game of Tetris by thinking and imagining alone. The game is on a screen for everyone. The block must be rotated or not, that's it. To decide or send a decision, participants must make a very conscious action to look at a specific flashing light. To interpret the signals, the participant must be paying attention to the occurrence of strange flashes in his eyesight.

What bothers me a little too with the pumped title is that, as far as I know, there is very little novelty here. All the interfaces were already developed. So what do we gain from this experiment?