User blog comment:Nice Things/Because Magic?/@comment-96.4.30.118-20130605173115/@comment-933831-20130605180855

Errr.... Quick correction. Faster than the eye can follow is far far far far from light speed. The human eye can't follow over 500 kmph. That's not even half mach one. From personal experience in research, Mach 16000 is barely 2% the speed of light.