Um, Can We Talk About These Insane Game of Thrones Theories For a Minute?

OK, so it's been pretty well established that Bran Stark might possibly be the most powerful character in all of Game of Thrones. As we know, he's had visions before, but can Bran use his gifts to change the outcome of future events, or perhaps even influence things in a way that makes his ideal outcome happen? As of right now, it's hard to say so we'll just have to wait and see how much the young Stark boy does and doesn't know about what's to come.