The following letter was sent to MIT’s community today by President L. Rafael Reif. To the members of the MIT community, At MIT, Commencement is the most beautiful day of the year. Even in this strange pandemic moment, this afternoon’s graduation celebration will offer us all the opportunity to celebrate the wonderful spirit, character and accomplishments of our newest graduates. That joy is and should be perfect and untouchable. But I write with a heart that is also full of anguish – because it is impossible to face this particular…