With the new mental health experts the defense is trying to get on the witness list for the guilt phase and ICA's bizzare courtroom behavior it has me looking into a new possiblity:
A little far out, but consider that the defense might suggest that ICA was raped by someone she met and that Caylee was a product of that rape.
This explains why she never admitted to who the father is, why the A family knows the father won't identify himself and why she denied she was pregnant as she had blocked the rape out of her mind due to ptsd and in her mind, could not be pregnant. When she did confirm she was pregnant she then assumed it was Jesse's.
When Jesse was determined not to be the father, her mind created a happy, made up world of fake jobs, nanny's, etc. to cope.
Then a completely accidental death of Caylee was so tramatic that it caused ICA to again have ptsd becoming even more dissociative and then block that event from her mind, explaining her happy, party self and her new belief that she did not die but a baby sitter had her.
Then the trama of finding Caylee's remains has forced her to remember the rape and the tragic death, and this has finally put her over the edge and she now is completely dissociative and thinks she is one of the lawyers on a case.
Wow, kind of makes Sybil look normal.