Pretty, isn’t it? But what is it? Start with a U then make four copies, glued in a U, shown in yellow and blue and repeat and repeat and repeat and repeat and repeat and repeat til the curve fills the plane. A bit hard to see. What if the curve wasn’t always black? What if it changed, from start to end? Start small then repeat and repeat and repeat and repeat and repeat and repeat til the curve fills the plane. Now you see some of the majesty of Hilbert’s curve. It is difficult, though,...
