https://www.recode.net/2018/1/12/16882640/facebook-stock-news-feed-wall-street-stifel-analyst

Facebook is rethinking the way it works, and that will have repercussions for users, advertisers and publishers that use the network.

The overhaul, which will first show up in Facebook’s News Feed, will be a “major change,” said Mark Zuckerberg, who says users may end up spending less time on the site.