the worlds/societies asimov divines are breathtaking. couple that with his very simple style of narration and the guy is savant-like in what he does. i mean it's one thing to dream up some previously untapped scenario but it's another to think through so many of the nuances of your vision making the reader walk away with a real sense of familiarity. and everything i've read by him comes off so effortlessly it makes it seem like he's personally visited these worlds. his depth and art of description appear limitless.