When choosing a business, we should first consider the industry attributes of the business, including whether the competition is sufficient, industry barriers, industry trends and so on. Full competition can also be understood as the intensity of competition. If the industries with too fierce competition want to cut in, they must cut in the market segments, while the industries with less fierce competition are often easy to cut in. For example, Taobao, e-commerce has developed for so many years. If you want to be an e-commerce, you have to do sub-categories. Otherwise, you can only fight against big brands. China's economic growth has slowed down, and there are fewer and fewer industries with less fierce competition, but it can still be found after careful observation. The direct selling mode like the beauty workshop is an emerging market with certain industry barriers. Industries with low competition often have high barriers, such as river sand mining and artificial intelligence mentioned at the beginning. If an industry has no barriers and insufficient competition, it must be temporary. The development trend, many industries will have the law of newborn period, development period, stable period and recession period. Some people say that the trend of doing things, or the industry that big coffee said is at the forefront, is actually talking about the developing industry.