Why Google+ Failed

When you viewed content in your Google Plus stream, the content was ranked using a sophisticated algorithm so that “important” or “interesting” content appeared at the top, while lower-priority communication appeared lower down on the page. The leaders of Google Plus were convinced that ranking was the key—after all, the entire success of Google was based on ranking algorithms—and that any problems could be solved by coming up with a better, more personalized algorithm. Later on in the life of Google Plus, the company added a “notifications” feature that provided a separate user interface, visible in all Google applications, that displayed a list of messages sent specifically to you or that were otherwise deemed high priority.

Source: onezero.medium.com