The document discusses the value and impact of open data through various examples and statistics. It notes that in 2012, the world generated over 2.5 exabytes of data per day, and that every minute over 100,000 tweets, 684,478 Facebook posts, and 2 million Google searches are generated. It provides examples of how open data in New York City helped predict which restaurants were dumping grease and how London's open transport data saved commuters £15-58 million annually through new apps. The economic value of open data globally is estimated at $3.2-5.4 trillion.