When I read a novel that I really like, I feel as if I am in direct, personal communication with the author. I feel as if the author and I are on the same wavelength mentally, that we have a lot in common with each other, and that we could have an interesting conversation, or even a friendship, if the circumstances permitted it. When the novel comes to an end, I feel a certain letdown, a loss of contact. It is natural to want to recapture that feeling by reading other works by the same author, or by corresponding with him/her directly.
One of the problems, hanging out with me, is that I can turn any topic into a toxic horror story. I've lost two girlfriends and a job by reading an ingredients label out loud, with annotations, at the wrong time.
In the case of Anathem, most of the research had to do with philosophy and metaphysics. Reading this sort of thing has never been my strong suit, so I actually had to be somewhat more "organized and results-driven" than is my habit. I just made up my mind that I was going to have to read some of these philosophy tomes, and I forced myself to read something like 10 pages a day until I had bashed my way through them.