It has been estimated that there will be tens of billions of devices connected to the Internet in a few years. This will result in very large amounts of data, including “raw” data from sensors, cameras, etc; processed and annotated data resulting from such data. At the same time, it looks extremely likely that the large majority of this data will be kept private. Data does not move. So far we have failed to create proper markets for data, and there are reasons why it may remain so.