With layering you don't try to get all the infomation in one activation pass. You get what you can in one 30 minute session. You already have the idea you may not have gotten it all so you come back to it with another 30 minute session doing that as often as necessary till you reach the level of comprehension you desire.
The repeated exposure in this way often helps to make sense of it even faster than one really slow read.
This reminds me of a saying my mother had "The lazy donkey carries everything at once, to his death" She was referring to our childish method of "saving time" by trying to lug all the tools at once back to the shed in one go. She felt we would have gotten the job done faster and easier if we made a couple of trips.
The thing is we do get things done better and faster in smaller lots rather than all at once.
Alex
