Thanks Alex. Can u give an example for activation.Lets take photoreading a chapter that contains about ten to twenty pages.After doing the photoreading step is review .During review I have to look the subtitle and trigger words all over again just like preview but with asking some question .What kind of question?My purpose is to understand every trigger words meaning .Is that a good purpose.If a book or a chapter that contains with lots of lots of trigger words it seems that I really need to spend a lot of time on dipping and activation .