A lot of products are competing with each other, and many people feel that it is becoming more and more difficult to make money.But what reality tells us is that the essence of economic regression is that ordinary products are highly substitutable and have low technical difficulty.Many people are fantasizing about going far away with the old way, which is unrealistic, and so is the product.The product will rise to the point where it is difficult to develop, and the technical difficulty is high, and only such a product is needed in the future.