In 10 years, Felton says, all this data collection will be happening constantly and automatically. The idea sounds scary, at first, but Felton won’t mind a bit. By measuring ourselves privately and intelligently, we can potentially gain incredible insights into the choices we’ve made, and the choices we have yet to make. It’s not yet clear what kind of discoveries personal measurement will yield, but they’ll span the entirety of our lives from our health to our productivity.