"For a long time, the promise at Twitter was that we were going to look at different ways of making money, and to some degree I feel that hasn’t happened." In

"For a long time, the promise at Twitter was that we were going to look at different ways of making money, and to some degree I feel that hasn’t happened." In other words, all the hand-waving didn't lead to human-powered flight, so Twitter is looking at the booooring aspect of actually sustaining their business.