Nearly half way through the second semester of the Licentiate course of studies here, I've finally settled on a thesis topic: papal infallibility. It comes down to this: I have a sneaking suspicion that it might be in play, so to speak, more often than frequently assumed or asserted. An academic study of a decade or so ago seems to have discovered no more than 7 ex cathedra statements in the entire history of the Church. I haven't begun any tallies myself yet, but I wouldn't be surprised if there were quite a few more than that even this past century. To me it seems an important question, especially since people are always lobbying to change various doctrines. We'll see where it goes.
Update: I've created a 'Licentiate Thesis' page with a slightly more developed outline of the topic as I'm thinking of it so far. It will be permanently linked on the sidebar, but you can also click here to see it. Thanks for the comments so far, and I would be interested to hear any of your opinions on it.