The Nervous Magic Lantern is strikingly low-tech and could have come about centuries ago. Longer than that and perhaps it did and was thought too strange and avoided like sin. A lightweight propeller steadily turns, interrupting a beam of light. This is almost the only difference from when sunlight, coming in through a small opening into a dark space, sent an inverted image of the outside world onto cave walls. Unknowing creatures were scared out of their wits but I know this for a fact that one enterprising fellow held his hand over the opening and, saying he had an in with Superior Forces, charged admission to see the “miracle”, inventing religion, theater and exploitative capitalism all in one brilliant stroke.