This is similar to how I ties my shoes, without the double twist though. Even as a kid, I thought of it as a problem decomposition: 1) tie a knot 2) fold end

This is similar to how I ties my shoes, without the double twist though. Even as a kid, I thought of it as a problem decomposition: 1) tie a knot 2) fold ends in half 3) treat the folded strings as a single string and go to step 1 and exit