I've had this happen to me quite a few times. I can always remember what I was doing at the time, but once I'm back out of "the zone" I think to myself "holy crap, how'd I do that?". It usually happens while I play an FPS, but I have had it happen in a few MMOs, and a few times in some RTS games.
I agree with those that say you go into a state of unnatural calm. I too have noticed this, it's as if your mind blocks out all inputs but the ones needed for the task at hand and focuses your extra brain power to achieving this goal. I'm sure it happens in other parts of life too such as martial arts, or when you hear about war heroes that took out a large amount of enemies.
It would be awesome to be able to enter it at will.
I agree with those that say you go into a state of unnatural calm. I too have noticed this, it's as if your mind blocks out all inputs but the ones needed for the task at hand and focuses your extra brain power to achieving this goal. I'm sure it happens in other parts of life too such as martial arts, or when you hear about war heroes that took out a large amount of enemies.
It would be awesome to be able to enter it at will.