When Noah Sheidlower was 12 years old, his father handed him a menu from an empanada restaurant in Queens, New York, and told him to keep it in a safe place. Sheidlower, now a rising sophomore at Columbia University, still has that menu, and approximately 5,999 more along with it. Over Zoom, he waves a hand to show me menus heaped into plastic crates and piles in his parents’ house in Long Island, where he has lived since early March due to COVID-19. Before that, he had spent much of…