That's unfair to Stephenson. The computer in his story was based on real design sketches of what you could do if you had atomically-precise manufacturing with a

That's unfair to Stephenson. The computer in his story was based on real design sketches of what you could do if you had atomically-precise manufacturing with an integrated liquid cooling network. (He did make the cooling network jet steam out at the end to go with the story's steampunk vibe -- that part seemed unrealistic.)