NMS is hardly the space simulator that ED is. It's basically a walking survival game on a single planetspace disguised to be different with random variation in terrain, flora and fauna. Frontier was relatively a small team too before ED release and the company became public. If you compare the detail and fidelity to astronomy ED has far more persistent detailing and a much bigger worldspace than NMS. And there are plenty of threads on why ED doesn't have atmospherics where the two main reasons are one, the tech may not be there yet especially on ED's ptp instancing. Has NMS implemented spacelegs in the player ships themselves or on massive rotating and detailed stations? of course not, far from it. Two, the resources to make the detail and fidelity comprehensive for spacelegs would be enormous. Consider how FSX has had over 10 years of third party development for sceneries , airports, detailed planes, etc. from hundreds of third party addons, and in comparison it's a long road ahead for ED. Not saying that ED will have to do 1meter resolution for the square kilometer detail the size of Earth, but they still have thousands of populatd worlds, hundreds of lore worlds, and billions of stars to do detail convincing enough for atmos and spacelegs. NMS besides being illusory on that level, use cartoony design style so it doesn't have to be compared to realistic looking sci-fi demands and so sidesteps the challenge. And finally compare the positive vs. negative reviews on steam between ED and NMS. Even with their year of updates, and rovers etc., NMS gameplay gets old far faster than ED. Yes ,it's a long wait, and it may be several more years before spacelegs, but then again in comparison, no other game project hsd made it there yet either nor even matched ED's current working ground-breaking state. (dual universe with their low rez voxels, and star citizen with their few planets in one system, a jerky mess at the moment).