Just stop. Please, just stop. If you know anything about procedural generation, if you know anything about random seeding and how to generate content based on procedural code and rulesets, just stop making these comments. If you do not, then please stop making comments upon topics that you -really- have no idea about.
I can assure you that not only is it quite feasible to pack a proceedurally generated galaxy onto a computer with pseudo random generated missions, NPC's and whatnot, but it's also very much possible to keep the vast bulk of them persistent in a database with the relevant lookups. This is not even technically difficult. Elite's -done- it in their previous games, so has the entire X series, along with a lot of other games in the meantime. So, just stop.