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From The Ark: NieR Automata Lore
We consider mistake factual when content is not factually correct to its source.
NieR Automata is set in year 11854 (source) - is a factual mistake according to the given source
There is no YoRHa cycle because reason1(source) reason2(source) - you not aggreeing with the educated assumption based on correct sources is not a factual mistake.