Interesting. I recently had a guy email me to say that my game Twenty (which I find induces a similar kind of focussed mental state as Tetris) was helping him

Interesting. I recently had a guy email me to say that my game Twenty (which I find induces a similar kind of focussed mental state as Tetris) was helping him with his military flashbacks. On the flip-side I would imagine this is similar to the kind of 'hypnosis' induced by poker machines and the like.