I still think, as far-fetched as it sounds, that Jessica wasn't a personality of Nikki's, except insofar as she jumped out of her own body when her father killed her, and into Nikki's.
Peter then absorbed her power to do that, and jumped into Nathan at the time of his death-by-hellstorm.
Somehow, Nathan is not burned to a crisp, but feels that he should be, and that mixed with bits and pieces of Peter's psyche are what drives him to try and off the Old Heroes.
Maybe with Peter's psyche came a weaker version of his empathic mimicry?
The dreams for each man, Nate and Matt, are cobbled together from insecurities that the elder Parkman found when he went rummaging around in their brains.
Most of us agreed, last season, that what each hero can do is a matter of their personality combined with their circumstances. What if, at its most basic level, there is only one power, and they all have it to some extent? Most only get so far, like with the illusion girl, or Nathan's flight or D.L.'s phasing. BUT, anyone could learn to do just about anything any of the others could do, if they could just get their heads around a concept from their point of view?
Welcome to higher humanity! Welcome to transcending yourself!
Just some thoughts that I found interesting.
