Over 1,000 employees from leading AI companies signed a letter asking the U.S. government to support international efforts to develop tools for pacing frontier AI development. Columnist Lance Eliot writes that the letter is intentionally vague about what specific support would look like, but that it opens an important discussion about whether AI advancement can be monitored and regulated globally. Eliot outlines a six-step process for implementing such pacing tools, estimating the effort could take until roughly 2035 given the need for international cooperation.