Close Encounters of the Humorous Kind

An Ancient Astronauts theorist reveals everything he knows, which is absolutely nothing. But he pretends to know, among other things, the extraterrestrial origin of modern art, the aliens' fondness for baseball and fast food, the secret mechanism of the pyramids, the Roswell UFO incident, the mystery inside the enigma of the Bermuda Triangle and the Nazca lines, the Moai heads of Easter Island and the Inca citadel of Machu Picchu, the Statue of Liberty and the Grand Canyon... And the greatest revelation of all, namely, that aliens inhabit among us although "it's still a difficult task to identify them because they cover their faces with a fluorescent pink balaclava".