Let's take a look on the dialogue:
pPeter: "I wanna see Nathan! Claire! Suresh!"
fPeter: "They are not the people you think they are."
pPeter: "Why not?"
fPeter: "Not all of us were born with abilities, OK? Some of us were made. A line was drawn, sides were chosen."
Let's as well remember fClaire's words in the very first episode: "I'm different, remember? Special."
What if she wasn't meaning "different from normal humans" but "different from other evolved humans"?
My guess is that Claire, among others, was NOT born with abilities but got theirs by the formula. Dr. Zimmerman strongly hinted that Niki, Barbara and Tracy were given their abilities from the company. So it's not unlikely there are more.
Claire has always disliked her abilities and now that she can't feel pain anymore she is suffering from them. Finding out that all this is not even "natural" but the result of some genetic manipulation - well that would explain very well how she might become this cold-hearted person in the future.
What do you think? Which heroes might be "artificial"?
I hope I have not overseen another thread dealing with this topic.
