Over the years I've kind of looked at it with a very skeptical eye, but I'm starting to think he may be moving more toward a science based approach and give it a little more credence now, at least based on effort. The reason being, what does he have left to conquer other than the science? He already has a massive following, already had a TV show and (I think) makes a pretty nice living chasing. I'm sure there's plenty of showmanship left, but at this point in his career it would make sense to bring science back into the fold and try to contribute, albeit in his own unique way. Time will tell whether he ends up making a real contribution to science or not, but for now I think he's putting some legit effort into it.