Ok, so first what do I mean by cortana’s world?
When Cortana is plugged into Johns armor and she visualizes herself in his HUD you can see streams of code behind her forming some sort of background wall…that is what I call Cortana’s world.
Now, when you first see it on the dawn of is very plain…but then after the Librarian kidnaps her and she is retrieved by John she speaks to him on the way to the elevator about wondering what the Librarian did to him and her “world” has changed. It looks like there are monitors behind her…it definitely looks different. Anyone else notice? Anyone else wonders why?