A student emailed me yesterday, panicked, in the early afternoon. She was worried about her final project in my university course, which was due at midnight. By the time I saw the email, three hours had elapsed. By the time we got on Zoom to discuss the matter, another 90 minutes had been spent. That’s when I learned about the outage. Canvas, an online service used by as many as 40 percent of North American colleges, among them Washington University in St. Louis, where I teach, had gone down