"The recent generation of young turks is doubtless having fun with data scrawling but at some point it will pass people by unless there is a purpose or utility to it. They've got the engagement sorted. These things are mostly usable. What they are not is useful.

That is where people like Few come in. They work in analytics - using data for decision making. They are ideal real-life mentors, solving real life problems. They can point the way to thinking of these apps as tools for whatever outcomes." Max is right - it's a great blog. Good spot.