Why? So then days actually mean years and hours mean days and a 'month' is 26 years, and a 'year' is actually 364 years. Be hard to work out the tides and vacation schedules. Wouldn't it be simpler to just call weeks weeks? So, that means Noah's big flood was really a very big war? ...or that any destructive event can stand in for any other destructive event, at the interpreter's convenience. Wouldn't it be simpler to call war 'war' and flood 'flood'? Prophecy, therefore, is absolutely reliable, if you read it correctly: After [something] had come to pass, [somebody] [sometime] in [some analogous terminology and eccentric arithmetic] had accurately predicted it.