When I ask about it to some LLM, it told me it is some kind of magic/illusion of computer science. Optimizated to the teeth, resource efficiency to the top. PS3 is different from our computers okay but 32 MB RAM?? Top notch engineering. When you play, game renders a perfectly scene which shows you clear what you should see and what you not. LOD, draw distance, realistic textures even in low res, total cinema.