?? "locally but not globally eliminable stuff" ... =?= "locally but not globally trivializable bundle" .... ????? .....

?? "purely topological / homotopy-theoretic / global" aspect, vs ... ??? .....

?? "flat" .... ???? .....

?? "doctrine" (?? ....) associated with derived level ....

?? "what derived category of quasi(?? ...)coherent sheaves sees" ... ??? vague memory about sudden realization about this (?? ... ??? maybe ... ?? "alg k-theory" ... ?? .... ?? ...) .... ??? which way ?? ... ???? .... bit about ??? underlying module of ideal as retaining knowledge of ideal in anomalous(?? ...)ly coarse way in co-dimension 1 case ..... ???? ..... ???? ....

?? attempted idea of .... theory of derived level doctrine as coarse, "homotopy-like" invariant ..... ?????? ....