Less data leads to lower quality user experience. There’s no consistency or continuity between different apps and environments. Every time I create a new profile or download a new app I feel like I’m starting all over again. At first I’m reduced to a stereotype who needs to sign in to see irrelevant content or meaningless ads. Fragmented data and inconsistent algorithms provide noise instead of signal. My interfaces to information are not optimized for me. I’m inspired by the thought that I should benefit from all of my tags, comments, likes, and reviews across different apps and services. I should be able to continuously contribute in creating a better personal interface to the information around me. I want all of my data to be brought together into my own personal interface. Before solving the “Big Data” we should figure out the “small” personal part. Algorithms alone can’t make me whole. Different services need my continuous contribution to understand who I really am and what I want. And I believe that apps and services that openly share their data to provide me a better user experience are not far off.
Jarno Koponen, from "Your Data is your Interface" http://pandodaily.com/2013/04/17/your-data-is-your-interface/