Fear of an Inverted Planet

In 1869, a man named Cyrus Teed experienced a vision revealing the true nature of the cosmos: Yes, the Earth is a globe, but we live on the concave surface of the hollow interior, with the sun, moon, and stars located at the very center, their apparent celestial ballet a complicated optical illusion. The strangest part of this story is that – inevitably, in a multiverse with infinite, infinite var...