40 At 30, It's Time to Start Self-Media

40 At 30, It's Time to Start Self-Media After turning 30, I had a very noticeable change—I think more, I think deeper, and I started looking at many things from a build perspective. For example, eating a Jianbing (Chinese crepe) on the street: before 30, I just thought about eating it; after 30, I think about rent, storefront, labor, daily sales, and time costs. Now, when looking at many industries, products, and companies, I don't just watch the show; I start to ponder the tricks of the trade—including various ways to make money, and ways to teach people to make money, I ponder the mechanics of it all. Back to self-media. "At 30, it's time to start self-media"—this is actually