Big data is a term that describes the process of handling and analyzing evolving data that is in the Petabyte and Exabyte range. It is predicted that when stored data reaches these sizes unknown trends and patterns will emerge that cant be found in smaller data sets. However, when data reaches these sizes, it becomes much more difficult to quickly analyze all the data and find patterns as the data continues to evolve.
Examples of Big data include analyzing the transactions made at a retail giant such as Walmart, processing Twitter posts, and tracking financial markets.
Many believe big data helps predict things to come and help prevent things such as crises, pandemics, and instabilities. Others argue that big data is a major violation of privacy and is primarily going to be used by governments and corporations as another way to take away your rights and spy on you.