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Why does using Huawei's Ascend 910 chip violate U.S. export controls? Think of it as a "secondary violation.” Here's how it works. 🧵👇(1/5) bloomberg.com/news/articles/…

Clear evidence that Beijing sees US science cuts as an once-in-a-generation opportunity to undermine US talent pipeline advantages. We are at a tipping point. The Trump admin's actions contradict the vision it's articulated to ensure US S&T leadership. 🧵 1/6

The White House just paused ALL visa interviews for foreign students. A disaster for longterm US competitiveness in emerging techs. Five months in, and the damage is adding up. A detailed account of the disruptions to US science, by month. 🧵 /40

Hoping we adopt a targeted approach to research security. But mass revocations of Chinese student visas will undermine US tech advantages. >80% of Chinese STEM PhDs stay in the US post-grad. When they do, the US benefits. Intl students are core to US S&T. Here's why 🧵 /15

International students made up more than 40% of the 500k doctoral degrees awarded by U.S. universities between 2000 and 2019. And stay rates for foreign STEM PhDs are high — over 70% remain in the U.S. Jason Riley cited a 2022 CSET report in his new piece for Wall Street Journal Opinion.

All lab researchers know: there are lots of things we *want* to measure, but simply can’t. Instead, we use proxies+really careful interpretation. The same is true of AIxBio safety evals. But, some go well beyond what they're able to measure. So, what can we measure?🧵/8