Fuchsia isn't exactly a total secret. It has been spotted numerous times, partially thanks to its open source nature. But while Google hasn't taken pains to hide this third operating system, it also hasn't said much about it. Perhaps for the first time in a long while and in the biggest way possible, Fuchsia's existence and goal has been confirmed by a high-ranking Google official. And not just any Google exec but the very man who heads Android and Chrome OS, the two platforms Fuchsia is expected to unify or replace.