That's based on the assumption that Serenity will never get to the point where it is truly useful and able to be used as your primary operating system. And I can understand that assumption, but it's also never going to happen if no one goes and does it, even if the task is daunting and monumental. I think if progress keeps up at the current rate, it will still take many years, but this will absolutely turn into something more than just a novelty.