"If This Goes On—"

"If This Goes On—" is a science fiction short novel by Robert A. Heinlein, first serialized in 1940 in Astounding Science-Fiction and revised and expanded for inclusion in the 1953 collection Revolt in 2100. One of his Future History series, it recounts a future theocratic  American society, ruled by the latest in a series of “Prophets.” The First Prophet was Nehemiah Scudder, a backwoods preacher turned President (elected in 2012), then dictator (no elections were held in 2016 or later). Scudder was previously mentioned in passing in stories such as Logic of Empire and later on in Heinlein’s final novel To Sail Beyond the Sunset.
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