> My suspicion is that this artist had the opposite -- the ability to maintain a detailed image in his mind's eye as he traced it. Check out Kim Jung Gi. He's

> My suspicion is that this artist had the opposite -- the ability to maintain a detailed image in his mind's eye as he traced it. Check out Kim Jung Gi. He's basically doing that in real time, with impossible speed, accuracy and level of detail. He's making a living via performing live shows of his skills.