Epoch AI researcher @js_denain on the sci-fi technologies that will define the post-AGI world: "There's maybe 10 of these sci-fi technologies that really come up very often." "A good example is interstellar probes. There's this really interesting paper called Eternity in Six Hours, which tries to do this kind of exploratory engineering. Self-replicating probes that could go to other solar systems, eventually other galaxies. It has creative ways this would work, which starts initially with…