The Cornell reopening model hinges on two factors: Students will return to Ithaca, as found in survey results, and Cornell has no jurisdiction over students who live off-campus, making testing for COVID-19 difficult if the campus is closed. Testing is integral to their model, as it should be, and inability to test off-campus students would mean COVID-19 could and would spread, potentially largely undetected. These factors are contestable, but let’s assume for a moment the model works, at least within its own framework. The model demands testing, testing and more testing within the Cornell community to keep the virus from spreading. It, of course, takes into account the relationship of the campus to the broader area: “We were surprised to see that the outside infections had such a large effect on results.