 The battle of the big systems seems to be over, and likewise for the heyday of interdisciplinary departments and programs of history and philosophy of science (but see below). So are historicist conceptions of rationality dead? Despite claims that historicist philosophy of science has been “withering on the vine” (Fuller 1991), it is fair to say that historicist influences remain important, but in a subtler way. Most philosophers of science are more historically sensitive than before, whether or not they identify as historicists. Historicist interests have expanded into “the naturalistic turn”, “the models turn”, and “the practice turn”, which includes interest in contemporary practices, and, to a lesser degree, in future history (Nickles forthcoming).