>The actual law, dictated by the F-1 visa program allowing foreign studies, is that a foreign Stanford PhD must permanently depart the United States within 60 days after graduation. There's a one-time extension available under the OPT program, where they can stay up to one additional year so long as they maintain employment complementary to their education for at least 20 hours a week. But after that year they must either obtain an H-1B or leave.

Strange how you accuse me of intentionally lying, yet write the above. I will be more kind than you, and assume that you are unaware of (for example) the EB-2 visa which someone like Karpathy would certainly qualify for immediately. All a H-1B allows, from the "dual intent" perspective, is to temporarily extend the time one can stay in the US while looking for a job that will sponsor for another visa type (typically EB-2); it by itself *does not automatically lead to a green card or US citizenship*.

EDIT: I somehow overlooked another, ahem, inaccuracy in your riposte. Someone like Karpathy would easily have qualified for the 24-month STEM OPT extension to the base OPT year.

Bottom line: A Stanford PhD (not necessarily in a STEM field) who wants to stay in the US has very good odds of being able to do so.