Data is considered to be one of the most valuable commodities in the world today. It ranks alongside other precious assets such as rare earths, gold, diamonds and oil. Our lives are increasingly bound to the story of data. In the beginning, it was used to enable tribes of humans to survive the winter. Later it became a means of understanding and exercising power. In ancient time we have kings using it to manage the tax take and ownership of land. In modern times we have political campaigns using data to understand and manipulate the voting public.