Thank you! this is exactly the kind of feedback I was hoping for. Making the solver swappable is a genuinely great idea I hadn't considered. Watching Euler bl

Thank you! this is exactly the kind of feedback I was hoping for. Making the solver swappable is a genuinely great idea I hadn't considered. Watching Euler blow up the solar system while RK4 stays stable would make the tradeoffs immediately visible. Adding that to the roadmap.