A look at Pix, a mobile payments system launched 11 months ago by Brazil's Central Bank and used at least once by half of Brazil's population (Bloomberg)

Bloomberg:
A look at Pix, a mobile payments system launched 11 months ago by Brazil's Central Bank and used at least once by half of Brazil's population  —  One year ago the Pix platform didn't exist.  Now half the population uses it, showing just how quickly adoption of digital payments can spread.