The document discusses how the internet and emerging technologies are changing people's identities. It notes that as the web has spread into every aspect of daily life, people's identities have gone public with profiles on multiple social networks and websites. Now, one's identity is tracked everywhere online through activities on sites like Facebook, Twitter, Foursquare and more. This lack of anonymity means people are identified and personalized experiences are instantly tailored based on personal data collected in massive databases. The document questions how these changes to one's digital identity will affect how people feel and act in the future.