The document discusses the potential and pitfalls of big data. It notes that while big data will change the world, there are challenges to address like viewability of ads, inaccurate attribution windows, and incentives for bad behaviors. Proper tools and human expertise are needed to guide machines to realize big data's full potential while avoiding these pitfalls. Big data will require constant innovation, as seen with the creation of Map Reduce, Hadoop, and now newer technologies like Quantcast File System.