Thank you for the thought! 1) I did maps to show how wanted to have substantial sea level rise and I found even 1,000 years was pushing it. 100 years wouldn't

Thank you for the thought! 1) I did maps to show how wanted to have substantial sea level rise and I found even 1,000 years was pushing it. 100 years wouldn't have been enough time for that. 2) "Cars" that function like a small personal spaceship, but "personal space ship" sounds funny. I'm betting whatever people are being moved around in in 1,000 years they might be called "cars", right? 3) That's the rub. I'll give it away, the idea is that what if in like the year 2100 or so an AI was able to take control of civilization, it might do it covertly. So the idea is that an AI has been controlling the world for 1,000 years, keeping people happy and in check while building its plan to escape!