MoveTube: Savion Glover takes on Fred Astaire

guardian.co.uk: Dance on YouTube tantalises us with the promise of figuring out exactly how dancers do what they do: staring at performance footage over and over again, we think it must be possible to nail the detail of every move. But every time I watch this clip of Savion Glover, I lose focus – I feel myself caught in the headlights of his speed, intricacy and his dazzling casualness.