Donna's love affairs happen in the summer of 1979. When Rosie finally shows up, Sophie tells her she's, quote, "twenty-five years too late", implying that she is 25. Given that she was born in 1980, this means that Mama Mia! Here We Go Again MUST be set in 2005. However, in the prelude to "One of Us", Sophie was using an iPhone 7 (2016), which would make her 36. In this essay I will--