 Soon afterwards, Aizawa and Gillett (2011) distinguish two strategies scientists might adopt to deal with putative cases of multiple realization. One strategy is simply to take multiple realization at face value and live with multiply realized kinds. The other is to split the higher-level multiply realized kind into a variety of sub-kinds, one for each of its distinct lower level realizers, and then eliminate the original higher-level kind, at least for the purposes of further scientific investigation. Do scientists always favor the second strategy, as recent philosophical critics of multiple realizability would seem to recommend? With its well-known distinctions between different types or systems, memory research would seem to be a clear instance of using such an “eliminate-and-split” strategy. Yet, Aizawa and Gillett argue, such an assessment oversimplifies the actual scientific details in even this much-discussed case. Here too they sense an important general methodological lesson: psychology took account of neuroscience discoveries, so even when taking multiple realization at face value scientists do not advocate strict methodological autonomy. But the actual details of how psychology takes neuroscientific discoveries into account depends both on the nature of the psychological kinds in question and the needs of theorizing specific to psychology.