With all the false jocularity of kids' show hosts, the Iconoclasts set out here to undo the work of the "round earth cabal." Timothy Racine and Marc Chrisler are obviously having a great deal of fun as they energetically attempt to debunk gravity or space travel and recast pivotal discoveries with absurd counterarguments and silly "historical reimaginactments" depicting everyone who doesn't support intelligent design as a rapist, or Hitler. However, this 70-minute show suffers, as many self-directed endeavors do, from a lack of focus. The duo often abandon their variety show framework for random pop culture tangents and, even when they stick to the format, many bits flounder. Further developing the characters would help sharpen the satire. Open run: Fri-Sat 10:30 PM, Prop Thtr, 3502-4 N. Elston, 773-539-7838, $15, two for one for students and those seeing Hizzoner (see separate listing).