Metaversalism is a philosophical system that claims to have rationally proven that all possible gods and universes exist, and to have derived many interesting theological and spiritual conclusions from this answering the classic "big questions" about these subjects. Metaversalism's central concept is that of the "Metaverse," using a less common sense of Metaverse, referring to the panoply of all mathematically precise and consistently describable objects and structures. Metaversalism is most often seen promoted by the Church of Metaversalism founded by Thanos Endrizzi using various social networks.
Person A: "I think Bob must believe in Metaversalism."
Person B: "Why do you say that?"
Person A: "He says that his is the only rational religion."