Governing Without Blueprints

This paper examines key intellectual antecedents to Post-Normal Science (PNS) as a framework for governing under conditions of uncertainty, value conflict, and non-closure: situations in which no definitive resolution is available, yet decisions must nonetheless be made. Beginning with Eisenhower’s warning against the growing influence of scientific and technological elites in public affairs, it reconstructs a series of responses to a recurring problem in modern governance: how collective decisions can remain legitimate when certainty is unavailable, consequences cannot be fully anticipated, and no blueprint can determine the correct course of action in advance. The discussion moves through Dewey’s democratic experimentalism, Simon and Lindblom’s critiques of comprehensive rationality, Schön’s reflective practice, Weinberg’s concept of trans-science, Ravetz's analysis of the institutional conditions affecting scientific quality and integrity, Rittel and Webber's account of wicked problems, and Latour's conception of collective experiments. It also places these traditions in dialogue with Latin American critiques of scientific dependency and the dialogic epistemology of Freire. Rather than presenting PNS as another diagnosis of uncertainty and complexity, the paper argues that it is best understood as an institutional response to challenges arising at the intersection of knowledge, power, and participation. What distinguishes PNS from its predecessors is the linking of uncertainty appraisal to extended peer scrutiny. Quality thereby replaces certainty as the relevant standard for policy-relevant knowledge. This linkage makes uncertainty visible, exposes value diversity, and broadens assessment beyond certified expertise. The linkage cannot by itself confer democratic legitimacy. It makes the authority of knowledge more accountable to public scrutiny.