What does it do or what is it supposed to do?
Well, the definitions across most all references basically say a “simulator is a device that allows the user to operate a similar set of controls designed to provide a realistic experience to a particular vehicle (ie. car, airplane, etc). A device or machine that enables the user to reproduce the conditions likely to occur in the real world.” So, a really good simulator has the motion that is most like what you feel and experience when racing a car or flying a plane. It’s the motion that is the key for a simulator to be a really good simulator.