“Should we simulate mental models to assess whether they agree?” To answer this question, we examined whether the simulation outcomes of 260 mental models about socio-ecological management could be known by looking at centrality. We received the Best Paper Award for this work at the spring simulation multi-conference (SpringSim 2018), and also the best paper in its annual simulation symposium (ANSS). The first author was former student Eric Lavin, with collaborators Andrew Stefanik, Steven Gray, and Robert Arlinghaus. We thank the team for the hard work that they’ve put into this paper, which takes a radical approach by questioning when we really need to run simulations.