I’ve just participated in a two day workshop in Vienna hosted by the International Institute for Applied Systems Analysis (IIASA) called Security in the age of Systemic Risk: Tactics and Options for Dealing with Femtorisks and Beyond. This intimidating title masked the openness and interdisciplinary character of the workshop, which brought together a variety of scholars and practitioners working in the areas of complexity science, risk analysis, decision sciences, mathematics, and international relations, continuing the conceptual and community development that started in 2008 at the Santa Fe Institute looking at complexity and international relations.