counterfactualism en · NOUN
Etymology
From counterfactual + -ism.
Meanings
-
(uncountable) Synonym of counterfactuality.
Gavriel D. Rosenfeld has devoted an entire book to a discussion of WWII counterfactualism: The World Hitler Never Made: Alternate History and the Memory of Nazism.
2012, Robert von Dassanowsky, Quentin Tarantino's Inglourious Basterds: A Manipulation of Metacinema, page 287: