社评：建议美国一些人到链博会现场看一看

Group 1 - Nvidia's decision to resume sales of H20 AI chips to China is framed as a strategic move to make Chinese developers reliant on American technology, despite the chip being described as "outdated" [1][2] - The U.S. government's reversal on the H20 chip sales is seen as a correction of previous errors, allowing both U.S. and Chinese companies to benefit from market access [2][3] - The ongoing debate in the U.S. regarding the sale of H20 highlights a broader issue of contradictory narratives about China, often driven by political posturing rather than factual analysis [3] Group 2 - The third Chain Expo in Beijing showcases the growing global cooperation in emerging technologies, with a notable increase in U.S. participation, indicating long-term confidence in the Chinese market [4] - The Chain Expo's success reflects a shift towards economic globalization and free trade, contrasting with the zero-sum mindset prevalent among some U.S. politicians and media [4]