-This draws strange attractors: it's a colorful,
-unpredictably-animating field of dots that swoops and twists around.
-The motion is very nice. Written by Massimino Pascal.
+Strange attractors: a swarm of dots swoops and twists around.
+
+https://en.wikipedia.org/wiki/Attractor#Strange_attractor
+
+Written by Massimino Pascal; 1997.