How could the apostle John have known that the whole world would watch the Two Witnesses (probably Enoch and Elijah) for the Messiah Jesus Christ in the book of the Revelation killed in the streets of the holy city Jerusalem, the apostle two thousand years ago unaware that television could broadcast such things around the world? And the Mark of the Beast, that no one will be able to buy nor sell without it, how did John know that a computer chip under the skin would activate financial transactions all around the world which could be monitored by a controlling authority?