Plato also really interesting system these are part of this new wave of interactive computing where you sit at the computer and you're actually interacting with the computer in real time and these guys know that they're trying to prove out this new concept and so they've designed the system from the very bottom to have an immediate response the user interface is always immediately responsive you interact with anything you immediately get a response so it's kinda of simulating a physical object and so if interactive computing takes off and 