[The princess’s suitors] were told to cut a slice of moon, or change the ocean into wine. They were set to finding things that never were, and building things that could not be.—James Thurber, “The Thirteen Clocks” (1950) In mathematics, a null set is a category with nothing in it, an empty box. By instructing the … Continue reading Export Controls on Emerging and Foundational Technologies: A Null Set?