The power to change is the power to communicate.
Communication is what makes the internet such a powerful thing.
Think about it. Think about anyone who has ever led. Practically anyone who has ever thought great ideas has had to learn how to communicate the sense of greatness of these ideas. The internet returns us to something old, something that has fundamentally affected every aspect of the world we have built, that has fundamentally affected how we live together. Communication and language is so much taken for granted that it is hard to imagine a time we did not have language.