Feels like you're trying to downplay this but that's not really correct imo. Ok the individual parts of the experiments (stimulation, decoding EEG) aren't exact

Feels like you're trying to downplay this but that's not really correct imo. Ok the individual parts of the experiments (stimulation, decoding EEG) aren't exactly new but for the rest I think it's quite novel (might be wrong though)? Why Tetris? Why not? It's not because only one bit gets sent now that they don't want to go any further. Also don't forget this maybe took years of preliminary research before they got something working. In those years they might have been using something else the switched to Tetris for publicity. Wrt being hackish: other commenter addressed that already; if you think this is hackish you'd be surprised what has been going in in neuroscience for the past decades. > It’s basically electrical communication Well, yes, that's the whole point.