"90 percent of Google+ user sessions are less than five seconds." By most actual metrics, Google+ was a failure. 90% of people went there "accidentally". They

"90 percent of Google+ user sessions are less than five seconds." By most actual metrics, Google+ was a failure. 90% of people went there "accidentally". They were trying to do something useful, travel to somewhere useful on the Internet, and clicking the plus.google.com link was a mistake! 90%!