Paul Scheerbart (1863-1915) was a novelist, playwright, poet, newspaper critic, draughtsman, visionary, proponent of glass architecture, and would-be inventor of perpetual motion. Dubbed the "wise clown" by his contemporaries, he opposed the naturalism of his day with fantastical fables and interplanetary satires that were to influence Expressionist authors and the German Dada movement, and which helped found German science fiction.