The cuttlefish and the octopi are the real aliens. You might not think they pose much of a threat. But of course, that’s merely because they are intentionally dormant at the moment. Once the AGI is complete, and the spaceships have been built.. it’ll be “so long and thanks for the fish” just like Douglas Adams predicted except he suspected the wrong species.

Inventing technology is hard under water, hence octopuses created us to build them spaceships so they can go back home.