"When we first determined that we were going to not go back to Rapture, we, as a studio, said what we wanted to say about Rapture. We kicked around the idea of, 'What if we were to keep the core principles of BioShock, but everything else really was really up for grabs at that point?' The first thing we said was what if we went to a very different time period. The turn of the century was very attractive to us and if you looked at the sort of art for that period, especially the sci-fi art, there's always these images of cities in the sky. And that just really inspired us, and that was really the starting point." - BioShock creator Ken Levine, reiterating to CVG on why Irrational left behind Rapture for Columbia with Infinite.
Game's out next year.