Inside Twitter's decision to keep Periscope and abandon everything else

In the wake of Twitter's decision to give up on Vine, there's a question that is hanging over Periscope: Could it be next? 
"It’s funny that people keep saying that. Everything we’ve done demonstrates that we’re doubling down on the platform," Periscope CEO and cofounder Kayvon Beykpour said last month during an hourlong meeting in the basement of Twitter's New York City office.
Periscope is still relevant to Twitter for the same reasons Vine wasn't. Twitter says it wants