A drive-thru coronavirus testing facility in South Korea. Credit: Republic of Korea. It feels strange to look back on 2020 and try to think of anything good to say about the year, the last 12 months being largely defined by a deadly pandemic and a presidential election that seemed to expose the fragility of US democracy. It’s hard to look past the distressing stuff—the pandemic lockdowns, the agonizingly long vote counts, the unexpected national importance of Wayne County, Michigan’s election canvassing board—and to remember the positive things that happened. But throughout the cataclysms of 2020, the Bulletin, its expert contributors, and its staff produced excellent work. Here are a few stories that are among the best we produced within the category we call disruptive technology.