By John D. Sutter
Seoul, South Korea (CNN) --- The first thing you notice about the professional video game players are their fingers -- spindly creatures that seem to flail about at their own will, banging at the computer keyboard with such frequency and ferocity that to visit their live-in training centers in South Korea is to be treated to a maddening drum roll of clicks and clacks.
The clatter is loud enough to drown out conversation. And it's constant. Rows of expressionless young men sit at cubicle-like workstations tapping at a galactic military strategy game, "StarCraft II," sometimes for 18 hours a day -- from 10 a.m. to 4 a.m.
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