User blog comment:Kaido King of the Beasts/Chapter 863: Who's Afraid of the Big Bad Mom?/@comment-28966845-20170420135507/@comment-3986064-20170420141621

I suggest rather the fact that he can only observe the future of what he sees. As he was looking away from the portrait, Brook managed to make use of the chaos and break it. A very very big plot twist considering how notorious plans are prone to failure in manga XDXD