what is puppetry eh? the art of manipulating puppets -- who is a puppeteer? one who manipulates puppets -- matryoshka doll / Russian doll? Each of a set of brightly painted hollow wooden dolls of varying sizes, designed to fit inside each other. -- Peeling off layers of Onion? Zilch. Infinite. That denotes INFINITY -- What is DOS Inverted Tree? It's something like: Puppets are BEING CONTROLLED by a Puppeteer and THAT Puppeteer is BEING CONTROLLED by another Puppeteer and so forth / and so on / ad infinitum . . . .