The most underestimated thing in 2026 is to deeply cultivate one field, but many people overlook this fact. I have seen too many people dabble in multiple fields, resulting in them not being proficient in any. A friend wanted to become a creative blogger, and I suggested he focus on one area, such as AI. At first, he followed my advice and gained a lot of traffic, but later he started creating content across various fields, and eventually, his articles had no traffic at all.