strange, not julia
The first draft of the new front page showed a Julia set. It looked fine, but it was not mine. My pictures were always closer to strange attractors: one single point, jumping millions of times by the same simple rule, never landing twice in the same place and still never leaving its shape.
So the front page now draws a new attractor on every visit, Lorenz, Clifford, de Jong and others, with the formula and the parameters right next to it. Where the point passes often, light builds up, like a long exposure. If you do not like the one you got, another one → asks for the next.