Is an ananachronist the same thing as an achronist, or an anarchistic anachronist, or what? All I know is that I have a terrible urge to spell it with far too many “an”s, along the lines of banananana dakry, and that the subtitle is “a puzzle in four dimensions,” which intimidates me already. I hope the implementation is natural and not overly confusing.
[spoilers begin here and proceed in a linear fashion]