Also, Greg Bear has hacked out some dreadful stuff but "Moving Mars" and "The Anvil of Stars" (the Forge of God is a bit of a pot boiler tbh, but it is the preq

Also, Greg Bear has hacked out some dreadful stuff but "Moving Mars" and "The Anvil of Stars" (the Forge of God is a bit of a pot boiler tbh, but it is the prequel, so...). Both are really big picture sci-fi; about what humans will do with toys that are beyond them, and are doing. Amazing.