Anyone who's taken an algorithms class from me has seen me do this. It's a mechanical procedure, it's unfamiliar, it's more efficient, it's takes practice, it's flashy, blah blah blah.
I learned to tie my shoelaces this way in 1984, my sophomore year in college, from my friend Paul. Two days after I learned this method, I had completely forgotten how to tie my shoes the old way. Paul said he learned it from his dad, who learned it in the Chinese navy twenty years earlier. Since then, I've run into a handful of people who know the trick but aren't shoelace-dharma heirs of Paul's dad. Obviously there were several independent discoverers.
Looking at Ian's instructions makes my hands start to cramp. The trick (if you're just starting out) is to make a big letter N with the laces; none of this delicate fingertip stuff.