MIT’s expansive effort to envision, and position itself for, a post-Covid world — Task Force 2021 and Beyond (MIT Beyond) — is now under way. With a letter today to the MIT community, co-chairs Rick Danheiser and Sanjay Sarma formally launched MIT Beyond, a collaborative, cross-Institute team composed of some 150 faculty, staff, and students. “Covid-19 has forced changes in how we all live, work, and learn — and there may be no full return to our old ‘normal,’” wrote Danheiser, chair of the faculty and Arthur C. Cope Professor…