太空中的未知数对AI来说仍然太棘手，无法独自飞行

In the movie WALL-E, some of the last Earthlings travel through the Kuiper Belt on the starship Axiom. For 700 years, a fully automated crew of robots has cared for them after our planet became uninhabitable. Running the ship is AUTO, an artificial intelligence system working to keep humans away — forever. Here at home, space agencies such as NASA are using AIs to explore the solar system. They are piloting rovers on Mars, preventing satellite collisions and training astronauts for spaceflight. But for now, spacefaring humans would be ill-advised to rely so heavily on AI. …