The new thing about big data is that, the cost of getting the three V’s namely, Volume Velocity and Variety has become very cheap nowadays. So as we consume data, it influences us. In the past, we weren't very much concerned about being caught by camera but today’s surveillance of the whole population, makes us realize about the sensors around us. Crowd-funding sites are a treasure of such smart censored things. The evolution of data collection in a world where every output is also an input poses immense technical and ethical challenges. But it’s also a massive business opportunity, changing how we build, maintain, and recover almost everything in our lives. Read more about this article at: http://radar.oreilly.com/2015/01/the-promise-and-problems-of-big-data.html?cmp=tw-data-na-article-stca15_72724