Barry hosts Hi-Phi Nation, and his most recent season had a run on David Lewis, America's foremost philosopher of possible worlds. So we talk about that notion that Hollywood has had so much fun with lately, and then we have fun with it in a couple of variations on a classic diner scene. Cheese salad, anyone? Mark philosophizes at partiallyexaminedlife.com. Bill improvises (and teaches) at chicagoimprovstudio.com. Hear more at philosophyimprov.com. Support the podcast to get all our post-game discussions and other bonus stuff.