I’ve never flipped my opinion on a product as fast as I have with this one. When it first came out, I thought it was the dumbest thing ever. Then I ran into their CEO at an event and he had me go through the onboarding process while he was looking over my shoulder… I now check this app every day.

There is so much more data out there that you can afford to tailor it to the individual,” says Patrick Wolfe, a statistician who studies social networks at University College, London. “Statistically, strength comes from pooling people together, but then the icing on the cake is when you individualize the findings.”

Here’s the smartphone technology that alerts a doctor when patients are headed for trouble.

Your most outdated gadget

Rob Walker asked some tech writers what their most outdated gadget was. Alexis Madrigal pretty much answers for me:

I think it’s the sound system in our car 2003 Volkswagen Golf TDI,” Madrigal says. “We have one of those magical devices that lets you play an iPod through the tape deck (how do those work?) — but it makes a horrible screeching noise when it gets hot.” That leaves the CD player and terrestrial radio: “We seem to rotate between the same three CDs we burned or borrowed some time ago, and the local NPR affiliate.”

Madrigal hastens to add that what he really wants is a stereo with “an aux-in so that I can play Rdio throughout the vehicle.” The problem? “I am scared of car audio guys,” he says. “I knew a lot of them in high school. They are a kind of gadgethead that just kind of freaks me out. I loathe the idea of going in there and having to explain why we have this old-ass tape deck, and then — because I don’t know any better — getting ripped off on a new stereo.

It’s either that or our cable box/DVR…that thing records about 20 minutes of HD programming and is 20 years old now. Really should trade it in for something made since Clinton left office. See also Robin Sloan’s dumbphone.