- last post: 01.01.0001 12:00 AM PDT
Here's a thoery (with no proof whatsoever to back it up):
If Cortana somehow merged with Gravemind, then it is possible that the 7-year lifespan limit "smart" AI's have could have been lifted - a lot of her consiousness became one with Gravemind, allowing for a whole bunch more neural pathways for information to reside in. This, in effect, would be a mind-shattering occurrance, and she starts going a little crazy.
She says she has defied gods, because she overcame the 7-year lifespan of her "race" - if a human suddenly was able to live for 300 years, that person might believe they have defied whatever god(s) they believed in.
She says she has defied demons, because she has started to go a bit insane, and thinks of her old friends as people who held her back.