Most posts spread to at least a 3rd degree. I can share an article, my friends see it and comment on it. Then their friends see that they commented on an articl

Most posts spread to at least a 3rd degree. I can share an article, my friends see it and comment on it. Then their friends see that they commented on an article by showing it to their friends. Also, don't forget the share button. That causes the degrees to reset and it goes from there.