It’s official: we’ve reached Peak Facebook. BuzzSumo and Buffer examined 43 million posts on the top 20,000 Facebook business pages and found total interactions fell from 23 billion in second quarter 2017 to 12.8 billion in second quarter 2018. That’s 45% fewer interactions. Meanwhile, posts rose from 6.8 million to 8.1 million, so interactions per post fell even more sharply. The study also finds that five posts per day is the optimal frequency. Makes me tired just writing about it.