The document discusses various prophecies about the end of the world that have been proposed, including famines predicted by Paul Ehrlich in the 1960s, biblical passages about the second coming of Christ, the Y2K computer bug, Nostradamus prophecies, and the Mayan calendar ending in 2012. It notes that people have been predicting the end of the world throughout history and explores some of the reasons why people believe in end times prophecies, such as environmental fears. The document encourages discussing these ideas and prophecies with others.