In school, we learned the "proper" way to write, and everyone was supposed to learn the same rules. Those rules worked for both books and letters, but accomplished writers knew when to break them to make a point. Then came the internet, texting, and social media. New methods of writing for new purposes gave way to bending the old rules and instituting new ones. The new system may seem lazy to those using the "proper" rules of capitalization and punctuation, but there's are reasons behind each new convention. Tom Scott explains.