The document discusses major changes that have occurred in Christianity and the church over the past 2000+ years. It notes that every 500 years, the church feels compelled to undergo significant reforms or transformations. Key events mentioned include Martin Luther posting his 95 Theses 500 years ago, the Great Schism that divided Eastern and Western Christianity 1000 years ago, the birth of monasticism 1500 years ago under Gregory the Great, the life and teachings of Jesus 2000 years ago, and the Babylonian captivity of the Israelites 500 BCE. The document builds the case that the church is due for another major "rummage sale" or reform and leaves the reader wondering what form that may take next.