By comparison, the game of Pong came out November 29, 1972. Pong was, to the the public, the most advanced simulation at the time.
Incorrect. "Spacewar!", made in 1961, was a far more sofisticated simulation created using a PDP-1. This machine had a mere 9 Kilobytes of memory and ran to 200kHz. The machine was roughly half the size of a fridge, and was able to simulate the balistic motion of two objects in realtime while taking input from a user. (With those specifications, it would be
paralyzed by attempting to run a simple GUI like Windows 3.1. Detailed visuals are far more strenuous for a computer than raw number-crunching) The machine on which Spacewar was made belonged to the Massachusetts Institute of Technology. (Or do you not considder universities to be part of "the public". Are mere civilian students of computer programming privy the Conspiracy's Super-technology?)
Pong was an advancement in miniaturization and affordability. It fit an amusing little program into a box smaller than a contemporary stereo system, at a price that a middle-class person could afford.
The computers mounted on a
nuclear submarine were far larger than the PDP-1, they would have easily been able to accomodate their tasks related to navigation and targeting of missiles, but would have frozen in place had they attempted to run anything resembling decent Image-editing software.
If, by 1959 the government had the computer advancement necessary to launch and track nuclear missiles on the fly from remote locations, it is by no large stretch of the imagination that they had other undisclosed advancements.
Launching and tracking a missile is a comparatively simple task from a mathematics point of view. One need only feed the machine your location, and that of the target for it to use simple geometry to determine the distance between you and the angles required. Vector addition can account for winds,
Tracking the missile in flight requires only that it carry a beacon tuned to a frequency which your radar can readily identify.
Balsitic tracking is not comparible to photo editing with regards to processing power.
And if you intend to shift the goalposts to using entirely photographic methods of forging evidence of Round-Earth, why even bring up the computers of a nuclear submarine? It's an entirely pointless act if you concede that the first NASA photographs of Earth could not have been made with the computers of the time.
I leave battling your arguments about photographic techniques to Kasroa, as optics are far from central to my field of study.