How to explain the supercharged star power of Taylor Swift? An undeniably gifted artist, Swift’s albums 1989, Folklore and Evermore, in particular, are excellent. She has written a battery of terrific pop songs. She is a generous and skilled performer. To suggest she is overrated is not an insult, therefore, but simply a comment on the absurd critical mass of her popularity, in which every lyric, scrap of artwork, cultural reference and personal tit-bit is weighted with a monumental significance which, it is becoming apparent, does her work few favours.