Harvard April 19, 2018 7:58 pm Enlightenment Now Steven Pinker, a Harvard professor and author of “Enlightenment Now,” explains why things aren’t as bad as they seem. US & World Videos 0:26 Two people and their dogs displaced by fire in Yarmouth 3:29 Boston youth dancers to perform at Kennedy Center 1:58 What to know about retail return policies 0:30 Two killed in early morning fire 2:56 Mega Millions jackpot rises to to $1.15 billion