# Social Simulation SocialSim is a DARPA research program concerned with modeling the spread and evolution of information across online social systems. ## Role Within the article’s sensemaking triad, [[DARPA INCAS]] discovers campaigns, [[DARPA SemaFor]] examines media, and SocialSim models platform dynamics and propagation. [[Modeling Influence Pathways]] is presented as the integration effort connecting those functions. ## Boundary Modeling a population-level information flow does not establish individual targeting or operational control of a platform. Simulation validity depends on data access, behavioral assumptions, calibration, and uncertainty. ## Source [[articles/Cognitive-Cyber Warfare Measures and Countermeasures#DARPA and IARPA Research Leads|Cognitive-Cyber Warfare — SocialSim]].