The number of Activation passes you'll need to have with a 250 page book will depend on the level of comprehension you are going for.
The higher the level of comprehension you want, the more Activation passes you'll spend.
You should easily be able to pose up to a dozen questions at the beginning of each pass.
"GEL" is a term we use to describe the feeling you experience when you have spent enough time activating your book, and the point when you realize you comprehend the book at the level which satisfies your purpose for reading it.
Dana
