I saw this video last year when she first published it, but was reminded of it this weekend when I was in Philly and saw some amazing large scale (architectural) turnings. I believe it’s worth the time to see – remember, in YouTube you can adjust the playback speed to 1.25, 1.50, 1.75 or 2.0 x the regular speed. Look for the settings button shaped like a gear in the bottom right of the video playback screen. This helps me get through some of the more mundane videos.