August 4, 2018 Last night I learned how to count money in a efficient and effective way. It's a difficult skill but worth practicing, because it's a good posture to 'show off' wealth although the paper we practice is fake money. Lol Today I learned how to use calculator. I realized the meaningfulness of piano-practicing. My fingers are much more flexible than others' and much more controllable. Sometimes I feel like a typing and counting robot when practicing such skills. I am anxious about my job, since it's very easy to be taken place by artificial intelligence.