Your guess is as good as mine as to the reasons for it. Ever since making his piece with the fact that his true home is at light heavyweight or heavyweight, he has basically been unstoppable.
Last summer, he dismantled the rusty robot that is Antonio Rogerio Nogueira in a mere 44 seconds. Then he found himself a big underdog against Alexander Gustafsson, but he made the Swedish hometown fans (and Gustafsson himself) break down in tears after a 135-second beatdown.
That was five months ago. Now, he fights for the UFC light heavyweight title this Saturday at UFC 187.