In response to antr and others talking about how this is "private" data, a few things: 1) Jawbone is a data company. You get what you want from them by giving

In response to antr and others talking about how this is "private" data, a few things: 1) Jawbone is a data company. You get what you want from them by giving them your data. Giving them your data is your choice, so if you are uncomfortable with it then you should not have a Jawbone. 2) What's interesting about this article is that it's in aggregate, across a statistically significant (so they say) number of people in these areas. They're not looking at individual stats, and I would bet would have a hard time tracing it back to a single person/name/etc, if they're even allowed to store it that way (not sure, but it would surprise me if they did). If you don't like your data being stored somewhere, why are you even on HackerNews? You know your data is being stored here and being learned from.