No one would have believed that peers could contribute knowledge and advice, helping one another to learn through YouTube videos, Wikipedia, or other sites. In fact, if you go back to 2000, before any of those things existed, you cannot find accepted theories of human nature, economics, or earning that could predict that those things could and would exist in less than a decade. No one guessed Wikipedia’s success, not even its founders. We simply didn’t know that, without a work plan, a lesson plan, or a taxonomy of what “counts” as knowledge, without leadership or payments or designated roles, people--non-experts--would build the largest encyclopedia the world has ever known, because we love to share what we know with others, and we’re even willing to spend endless hours creating our own community standards, editing, and making it right.