evidence: Two dates from 2022 seem certain to echo in geopolitical history. The first, Russia’s invasion of Ukraine on February 24, hardly needs further explanation. The second is October 7, when the U.S. government enacted a series of new export control regulations targeting China’s artificial intelligence (AI) and semiconductor industries. While most Americans are likely only faintly aware of the October 7 policy and its significance, the date marked the beginning of a new era in U.S.-China relations and, with it, international politics.