I particularly agree with his point about sense of realism, quite rightly life isn't a fairytale and if you play with knives, prepare to see blood. If I play a racing game and skid off the track I expect to see my car damaged, why should a virtual human character be any different?
in much the same way voice acting, sound effects, or real-time physics are tools. If I fire a gun at an enemy in Half-Life 2, I expect him to bleed
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