User blog comment:Keekian/The 20 "D" families/@comment-28573618-20161229042309

This sounds plausible and is a good theory and all, but I always thought Blackbeard's drive was similar to Nagato/Pain from Naruto. Now I know that comment alone will generate hate, but just hear me out. I believe Blackbeard follows his path because he thinks it's his destiny. He knows of Gol D. Roger's adventures, is aware that the D. family(ies) are "God's natural enemy" as Rosinante put it and believes he is what people are calling Luffy, the one, the D. that will change the world. While Nagato believed he was the hero in Jiraiya's books before Naruto came along, Blackbeard believes he is the D. that will change the world and chases after ultimate glory and the One Piece believing it's his destiny.