Web Guitar Wizard Revealed at Last

From a NY Times article of the same title by Virgiania Heffernan:

EIGHT months ago a mysterious image showed up on YouTube, the video-sharing site that now shows more than 100 million videos a day. A sinewy figure in a swimming-pool-blue T-shirt, his eyes obscured by a beige baseball cap, was playing electric guitar. Sun poured through the window behind him; he played in a yellow haze. The video was called simply "guitar." A black-and-white title card gave the performer's name as funtwo. The piece that funtwo played with mounting dexterity was an exceedingly difficult rock arrangement of Pachelbel's Canon, the composition from the turn of the 18th century known for its solemn chord progressions and its overexposure at weddings. But this arrangement, attributed on another title card to JerryC, was anything but plodding: it required high-level mastery of a singularly demanding maneuver called sweep-picking... I was able to trace funtwo's video to Jeong-Hyun Lim, a 23-year-old Korean who taught himself guitar over the course of the last six years. Now living in Seoul, he listens avidly to Bach and Vivaldi, and in 2000 he took a month of guitar lessons. He plays an ESP, an Alfee Custon SEC-28OTC with gold-colored detailing.

Here's the video. I had seen it and was pretty amazed but wondered if it was a real peformance or just an elaborate job of pretending to play something completely pre-recorded: