Three MIT alumni have won a 2020 MacArthur Fellowship, a prestigious honor unofficially known as the “Genius Grant.” “In the midst of civil unrest, a global pandemic, natural disasters, and conflagrations, this group of 21 exceptionally creative individuals offers a moment for celebration,” says Cecilia Conrad, managing director of the 40-year-old fellowship program. Each recipient will receive a $625,000, no-strings-attached award. Learn about the MIT-affiliated recipients: Isaiah Andrews PhD ’14, professor of economics at Harvard University As an econometrician, working in the subfield of economics that develops new statistical tools,…