I had the great honour and pleasure to have a Medaille Fields math teacher, René Thom, inventing the nick-named " theory des catastrophes" (official name : "théorie de la morphogénèse"). After his lectures I felt to have been walking in a wonderland . We sensed the n-dimension worlds, there was NO abstraction with him. The choice of this words was very accurate, connected to real life experiences and sure definitions. That wind representation is from that kind of feeling. Since Mandelbrot shapes I did not see so surprising and realistic walk in the magic math world .