Scalability is easy, provided you don't need it to work. Probably the number one failure of system scaling is when people dive right in and start building. No baselines, limited measurements, no analysis, just a hypothesis and a whole lot of late nights tweaking the system.

As part of a simulation I've been developing I recently had to decide how to model movement of vehicles within a 2D space. To keep things simple I settled on a tracked vehicle. Each time the simulation updates I calculate how much the vehicle rotates an…