Don't Blink Or You'll Miss It

Here he is, the world's fastest guitarist!

Now, if you're a "real guitarist"(tm), after watching "Flight of the Bumblebee" at 320 BPM, you shrug, look unimpressed, and say "Yeah, I could do that."

Kidding aside, there are very useful things to note here, namely, you can barely see him moving. One reason is that he is moving faster than video frame rates, but also, the key to playing this fast is that he is wasting very little energy. There is no unnecessary tension in his body, except for maybe a grimace.