全球创业：中国和美国是仅存的两台发动机

Group 1 - The core idea is that China and the United States are the only two countries with significant entrepreneurial and innovative activities, forming a "dual pole" in global entrepreneurship [2][10] - Both countries possess large domestic markets that support the growth of unicorns without the need for early globalization, with China having a population of 1.4 billion and the U.S. having a high-consumption market of 340 million [3][4] - The funding and capital structures in both countries are uniquely capable of continuous self-renewal, with the U.S. having a mature primary market ecosystem and China having abundant domestic capital willing to invest in long-term cycles [4][5] Group 2 - Both countries have complete and iterative full-stack technology industrial chains, with the U.S. excelling in software, chips, and basic research, while China leads in manufacturing, supply chains, and engineer density [6][7] - Other regions may have entrepreneurial activities, but they are limited by smaller markets, lack of funding, or conservative venture capital, leading to a focus on service outsourcing rather than innovative startups [9] - The AI era is expected to further reinforce the "dual pole" entrepreneurial landscape, with the next generation of startups requiring national-level investment and full-stack industrial chains, which only China and the U.S. can provide [9][10]