20240301

 Fell asleep after dinner and woke up around 2:30. Got up later to watch anime and play FC. Read books after breakfast, then did a cycling exercise. Played piano after lunch as usual, then returned to my study room to read books. Planned to implement local variables related functionalities, but felt it might be unnecessary, especially after re-reading chapter 3 of SICP in the afternoon. It was complex, scope, call-by-value/reference/need were all problems I was not sure how to solve them. While functional style programming, without local variables at all, seemed much easier. I also believed it was just appropriate for my project. Anyway, I decided to start with functional programming. I could add local variables when necessary. Plan had been changed and I needed more time to think about it, so didn't work today. Completed 7 pomodoroes today - three for exercise and four for learning.