As this blog persistently demonstrated in last year's campaign, Palin is a delusional fantasist, existing in a world of her own imagination, asserting fact after fact that are demonstrably untrue, and unable to adjust to the actual reality after it has been demonstrated beyond any empirical doubt. The campaign's media strategy of making sure she was never in a position to be asked anything in an uncontrolled setting, and of never holding an open press conference (unprecedented in the history of presidential campaigns) were a response to this. The only interview that dared stray even a little from this fawning celebrity-deference, Katie Couric's, revealed Palin to be an astonishingly inept know-nothing, camouflaged by incessant victimology.
She is a deeply disturbed individual whose grip on reality is very weak, and whose self-awareness is close to nil. This much is not a leap, let alone unfair. It is simply unavoidable if one examines her surreal invention of reality - even when she must surely know that the evidence exists out there to contradict her.
As I have long noted, this is not the usual political mendacity and spin. It is far weirder and more disturbing than that. She creates her own reality. And the fact-indifferent, editor-free marketing company, HarperCollins, is only too willing to make some money off it.