7/20/2026
I read a change in U.S. visa policy for international students. It makes me think a lot about America's greatest advantages. For more than a century, one of America's greatest competitive advantages has not been its natural resources or geography—it has been its ability to attract the world's brightest minds.
Briefly, the new rule is like this. The Department of Homeland Security has finalized a rule that ends the long-standing "duration of status" (D/S) system for F-1 students and J-1 exchange visitors.
Instead, new entrants will generally receive a fixed period of stay (typically up to four years, or the program length if shorter), and students who need more time must apply for an extension.
The new rule also places additional restrictions on transfers, changes in educational objectives, and shortens the grace period after completing studies.
Many of America's most influential scientists and entrepreneurs were immigrants or international students. Albert Einstein, Sergey Brin, Jensen Huang, Satya Nadella, Andrew Grove, and Elon Musk are all well-known examples.
Likewise, immigrants account for a disproportionately large share of U.S. Nobel Prize winners and founders of major technology companies.
We don't yet know the full consequences of this new rule. However, there are a few things we do know with confidence.
For decades, the United States has benefited from a remarkably successful talent pipeline.
First, America's world-class universities and relatively open immigration policies have attracted talented students from around the world.
Second, many of those students stay to earn advanced degrees, conduct research, or launch innovative companies.
Third, their work contributes to scientific discovery, technological innovation, economic growth, and tax revenue.
If the United States comes to be seen as a less welcoming or less predictable and uncertain place, some of the world's brightest students may increasingly choose Canada, the United Kingdom, Australia, Singapore, or other countries instead, like what happened during World War II when many scientists like Einstein ran into the U.S.
The effects may not be immediately visible. America's leading universities, research institutions, venture capital ecosystem, and entrepreneurial culture remain huge advantages.
The greater risk lies in the long term. If enough highly qualified students begin choosing elsewhere instead of the United States, the U.S. gradually lose part of the talent pipeline that has fueled its innovation for generations.
Those advantages, however, are not self-sustaining. They depend on a continuous inflow of talented people from around the world. Talent is mobile. If the United States becomes less attractive, that pipeline may gradually shrink. Over time they could affect scientific research, technological innovation, and America's global competitiveness.
In the end, people matter more than anything else. America's greatest strength lies in its human capital—its ability to attract talented people from every corner of the world.
A reader comments, “ 如果附加了移民前景的美国教育收窄移民通道，国际学生可能变少，那会带来美国大学的萎缩。” That’ll definitely force some schools to close.