In my opinion, 'Endless Frontier' is a concept that must be understood when creating businesses in the AI era Correspondingly, it is a 'limited game': From the perspective of the continuous development of AI, problems that may seem problematic today, but from the perspective of AI capabilities tomorrow or the day after, those that can quickly provide solutions, belong to "limited games". We should try our best to avoid making "limited games" our entrepreneurial direction Entrepreneurship should aim for a track where the problem space is almost infinite and demand is dynamically evolving. For example, Kelly mentioned the development of new drugs It can also be a more efficient tool for meeting or even predicting user needs and quickly satisfying them, such as AI lazy assistant, one click AI customer acquisition, etc This type of direction is based on the foundation of human 'infinite desires'. There is also a type of "endless frontier" direction that is built on the game between people, in order to compete for limited resources and determine the winner, the game never stops, such as quantitative trading systems; Meme's PVP tool, etc