 Unlike Carnap’s ideal of basic statement, whether protocol or physicalist, Neurath’s protocols were not ‘clean’, precise or pure in their terms. For Neurath physicalist language, and hence science in turn, is inseparable from ordinary language of any time and place. In particular, it is muddled with imprecise, unanalyzed, cluster-like terms (Ballungen) that appear especially in the protocols: the name of the protocolist, ‘seeing’, ‘microscope’, etc. They were often to be further analyzed into more precise terms or mathematical co-ordinations, but they often would not be eliminated. Even the empirical character of protocol statements could not be pure and primitive, as physicalism allowed the introduction of theoretical—non-perception—terms. Carnap himself, in The Logical Syntax of Language (1934), declared the distinction between analytic and synthetic (protocol-based) statements arbitrary. Physicalism, and thus unified science, were based on a universal ‘jargon’.