To give some idea of the amount of background detail, here are some bug fixes/reports:
Stopped prisoners in goblin sites from starting no quarter fights with their rescuers Stopped adv goblin performance troupes from attacking strangers while traveling Vampire purges in world generation to control their overfeeding which was stopping cities from growing Stopped cats from dying of alcohol poisoning after walking over damp tavern floors and cleaning themselves (reduced effect) Fixed world generation freeze caused by error in poetry refrains Performance troupes are active in world generation and into play, visiting the fort, can be formed in adventure mode Values can be passed in writing (both modes) and through adventure mode arguments (uses some conversation skills)
"In one sense, because of the game’s procedural design, the entire universe exists at the moment of its creation. In another sense, because the game only renders a player’s immediate surroundings, nothing exists unless there is a human there to witness it."
"Through the use of procedural generation, No Man’s Sky ensures that each planet will be a surprise, even to the programmers. Every creature, AI-guided alien spacecraft, or landscape is a pseudo-random product of the computer program itself. The universe is essentially as unknown to the people who made it as it is to the people who play in it—and ultimately, it is destined to remain that way."
More at:
http://www.theatlantic.com/technology/archive/2016/02/artificial-universe-no-mans-sky/463308/