Many elements are similar; that's because they all appropriate some fundamental principles about speed reading. The only difference is the PR step, which, as I wrote and exhorted people exhaustively to realize, may or may not do anything beyond the so-called placebo effect, as yet, no available studies have analyzed the efficacy of the PR step in and of itself. This needs to be done, contrary to the obscurantist and looped-logically arguments of Believers such as AlexK. The PR step, as I understand it, is something unique to this system-- I don't believe Chang's assertion that "ancient chinese scribes" used this same technique; where's the historical evidence?
KO