Simulation is a core piece of how Muon gets things done. We have a simulation ecosystem that's used for systems engineering, GNC development, operations planning, ground system planning, spacecraft scheduling, model fitting, flight software testing, and hardware testing. The same power model used when proposing a vehicle design to a customer is what we'll use when running hardware-in-the-loop on nightlies of flight software once we have the real hardware in house, and it's the same system the automated scheduler will use when deciding if a schedule is power-positive. Leading the development of a system this flexible is a challenge with a lot of leverage.