Every spring, Campus Preview Weekend (CPW) provides a living snapshot of undergraduate life at MIT — even, it turns out, during a pandemic. The traditional campus event follows a tried-and-true formula: academic departments, student services offices, residences, student groups, and many other teams offer hundreds of events — some serious (Academic Expo) and some not (liquid nitrogen ice cream making) — to showcase the magic of MIT to admitted students and their families. This year’s program was no different except, in light of Covid-19, it was run in an entirely…