We started the 2010s obsessed with our electronic hygiene—and ended them a nation of digital hoarders. Eleven ideas about the decade that killed iTunes.

In the ensuing 15 years, that basic assumption has spread to other online Google products: Google Drive, Google Documents, Google Spreadsheets. But it has also influenced user interfaces down the road from Mountain View. Most iPhone users, instead of tapping on a favorite app, now just search for it from the top bar. Even on Mac OS, the top sidebar item in the Finder file system lists recently used files, not one’s documents or desktop. (A note for older readers: More time separates us today from the debut of the first iPod than separated the first iPod from the debut of the first Macintosh computer.)