Taylor Swift's 12th studio album, The Life of a Showgirl, moved an extraordinary 3.5 million equivalent album units in its opening week, according to initial reports to industry tracker Luminate relayed by Billboard, a figure that eclipses the 3.482 million units logged by Adele's 25 in December 2015.
The numbers are being hailed as a commercial milestone for the streaming era, but they have also reignited an old industry argument: do modern sales tallies, which fold streaming, track sales, and dozens of physical variants into a single 'equivalent unit' metric, reward catalogue-style marketing as much as musical demand? Critics and a vocal minority of fans say Swift's multi-variant release strategy and retail exclusives skew the contest.
