Maybe Mark Cuban is right about online content having a shelf life. Content could have a set expiration and disappear. Obviously, that is not something that I have ascribed to over the years. My digital footprint has always been a little out of control. Digital content sometimes takes off on social media. Some content has a much longer shelf-life. Thinking about the longevity of content is an important consideration. Huge streams of content exist. Even by conservation standards the stream of content has grown exponentially. The number of books that could be stored in a library has gone up dramatically. That number has grown faster than the number of library shelves.