Why It’s Too Late to Decouple In 1999, the columnist Thomas Friedman pronounced the Cold War geopolitical system dead. The world, he wrote, had “gone from a system built around walls to a system increasingly built around networks.” As businesses chased efficiency and profits, maneuvering among great powers was falling away. An era of harmony was at ...

After the election, many people blamed Facebook for spreading partisan — and largely pro-Trump — “fake news,” like Pope Francis’s endorsement of Trump, or Hillary Clinton’s secret life-threatening illness. The company was assailed for prioritizing user “engagement,” meaning that its algorithms probably favored juicy fake news over other kinds of stories. Those algorithms had taken ...