20240226

 Didn't wake up until 12:30. Got up later to watch football games, and ate paste. Read books for a while after breakfast, then did a cycling exercise. Played piano for a while after lunch, then worked for a while. Seemed like my previous plan of defining data types first was not very appropriate, I would have to be clear about every details of the types first. So I decided to change my plan, firstly developed a system only consisting of boolean values (true/false) and an operation 'not'. Maybe 'and' and 'or' if everything went well. Made everything run and then added more data types and operations. Sounded easy but could be rather complicated, so maybe it would take me one week or two? Or even more. Anyway, just focused on this tiny system just for flipping coins currently. Completed 8 pomodoroes today - two for work and three each for exercise and learning.