The inevitable conclusion: "If a divergence exists between measured temperatures and those derived from dendrochronological data after (circa) 1960, then discarding only the post-1960 figures is disingenuous, to say the least. The very existence of a divergence betrays a potential serious flaw in the process by which temperatures are reconstructed from tree-ring density. If it's bogus beyond a set threshold, then any honest man of science would instinctively question its integrity prior to that boundary. And only the lowliest would apply a hack in order to produce a desired result."