Judged solely on the quality of its music, 1984 wasn’t necessarily the best year of the eighties. It did have an unusually high number of blockbuster releases. While 1982 could claim Thriller, and 1983 had Synchronicity, An Innocent Man, and Pyromania, 1984 was the year of such single-spewing juggernauts as the Footloose soundtrack, Born in the U.S.A., Eliminator, Sports, Can’t Slow Down, Like a Virgin, Private Dancer, She’s So Unusual, Purple Rain, and yes, 1984. So you can’t fault Michaelangelo Matos for making the year the subject of his new book Can’t Slow Down: How 1984 Became Pop’s Blockbuster Year.