 The parallel observation holds for philosophy of science. Here, too, the leading philosophers of science until the 1960s—the logical empiricists and the Popperians—rejected innovation as a legitimate topic, even though it is the primary intellectual driver of scientific change and producer of the wealth of skilled knowledge that results. The general idea is that the so-called context of discovery, the context of creatively constructing new theories, experimental designs, etc., is only of historical and psychological interest, not epistemological interest, and that the latter resides in the epistemic status of the “final products” of investigation. On this view, convincing confirmation or refutation of a claim enables scientists to render an epistemic judgment that detaches it from its historical context. This judgment is based on the logical relations of theories and evidence rather than on history or psychology. According to this traditional view, there exists a logic of justification but not a logic of discovery. The distinction has nineteenth-century antecedents (Laudan 1980). Cohen and Nagel (1934) contended that to take historical path into account as part of the epistemic assessment was to confuse historical questions with logical questions and thereby to commit what they called a “genetic fallacy.” However, the context of discovery / context of justification distinction (or family of distinctions) is often attributed to Reichenbach (1938). (See the entry on  Reichenbach.  For recent discussion see Schickore and Steinle, 2006.)