https://www.physicsforums.com/showpost.php?p=847769&postcount=426 what is wrong with Wang's approach? or even simpler, what IS Wang's approach, what is the essential, what makes it different? how can one even consider using conformal diffeomorphisms instead of ordinary? Is this what he is doing? He delivered this paper at the September Quantum Gravity conference but he is not really one of the regulars---not a gravitist. he works on all kinds of other physics as well. He is at a good place in the UK though. Perspective on this? Comments?