It's stated in the comic that she is far, far more powerful than any previous Jenny. Anything pointing to her being a Jenny can be explained by the fact that she believes herself to be a Jenny, and thus has altered reality to fit that. * Alternatively, Haruhi is Jenny Quantum, in an alternate universe where the Jenny cycle has never been noticed before. * Of course, Authority: Revolution" implies that Jenny Quantum created all the Jennies before Jenny Spark from scratch because she went to the Doctor's Garden of Memories and thought it was pretty neat.