Quite recently, I overheard a project colleague of mine having a discussion with someone on the phone. Somewhat abruptly, he covered the mouthpiece of the phone and whispered a question to me: "Erik, are we doing big data on this project?" My short answer, without thinking too much about whether the term is a verb or a noun, was that, no, we were not. The immediate reply: "So what is big data?" In response, I gave the best concise answer that I have ever heard: "Big data is when the size of the data itself becomes a part of the problem."