Yes but most of the time the compute abstractions are reasonably accurate that a slight loss of fidelity is still magnitudes better than physical experimentatio

Yes but most of the time the compute abstractions are reasonably accurate that a slight loss of fidelity is still magnitudes better than physical experimentation. For example if you want to build a Boston dynamics style robotic dog, a kinematics simulator coupled with a CAD tool can get you a long way cheaply versus having to build hundreds of prototypes.