I haven't posted in a while for a few reasons. One was that I needed to rest my brain after wrestling with the Church numerals exercise. When I came back to SICP, I worked through the "extended exercise" on interval arithmetic. I found that stupefyingly dull. Exercise 2.11 did me in. It involved building a complicated system of nested condition-checking. It reminded me of the CS courses I took in school that sapped my will to code. That's perhaps a bit harsh, but it did feel like a pedestrian exercise after the eye-opening new ideas that preceded it. So I bailed on the section and moved on to Section 2.2.
I also decided to take a different tack on my posts. If I cruise through an exercise without much difficulty, I'm not going to document it here. The Scheme Wiki has a good set of solutions if that's what you're looking for. Instead, I'm going to document the major points that I need to reiterate to fully digest, or any sections that I find difficult to grasp. I've worked through much of Chapter 2, so I should have more posts up. I need to review accumulation, folding, the picture language.
