1 Preface This week, my laziness suddenly acted up again, and I didn't want to use my brain at all. But writing one article a week is a rule I set for myself. If I stop updating at this time just because of laziness, I always feel it's not worth it. So I simply changed my thinking—since my brain doesn't want to move, I'll write something that doesn't require brainpower. I'll just write about my...