 In the Vienna Circle’s manifesto (1929), Neurath ushered in and extolled a scientistic turn in philosophy he labelled the scientific world-conception. Beyond the intellectual, he added, ‘the scientific world-conception serves life and life receives it’ (Carnap, Hahn and Neurath 1929/1973, 306, orig. ital.). Here the project of logical empiricism gets its Enlightenment dimension, with the old reforming, constructive and universalist ambitions, but with new and revised ideas and ideals of society, science and rationality (Uebel 1998). Neurath continued to maintain the view that, as predictive tools, all sciences are ‘aids to creative life’ (Neurath 1931/1973, 319), alongside his view of the complexity of life, e.g., the earthly plane of the empirical world that includes the human, private and social. It cannot surprise, then, that in this new transformative joint philosophical-social project he would urge that ‘the goal ahead is unified science’ (Carnap, Hahn and Neurath 1929/1973, 306, orig. ital.). Like science itself, unified science straddles any divide between theory and action, the world of physical objects and the world of social objectives, past and future, empirical reality and human realization. It is unity of science at the point of action (Cartwright et al 1991, Cartwright et al. 1996 and Cat et al. 1996, O’Neill 2003).