I would assume that the scales and velocities in FS has nothing to do with reality. The physics themselves are not realistic at all, but it is positive. I remember playing JumpGate and I tried to dock with a station, controlling the ship's intertia with the main thruster was almost impossible. The FS way is better than, even if it means the ship has thrusters built to reduce speed and stop full acceleration.
Anyway, what would realistic speeds be? Speeds in FS are obviously in meters per seconds. Distances are in meters and km (klicks). And they're much closer than what would be realistic. Weapon range is also extremely short for gameplay, and so is sight, for performance reasons. Imagine being able to snipe other ships several klicks away. And well, the laser beams travel awfully slow being light and show extremely well in hard vacuum.
Also, would realistic physics and distances be desired? Would they add anything? Would they make the game more enjoyable or just a pain in the ass?
Please share your thoughts.