Sun Bingwen went into a trance when he heard the words of Shao Rong. Though he got a hunch about it, it was really different from directly listening to it.
He felt like he just entered a high-tech sci-fi movie where every impossible thing comes alive making all the dreams come true. But can those things come out of a movie into their lives? The answer would be a big fat 'no' because they are called impossible for a reason.
If they can really come alive, they can be called difficult to achieve but they are not. There is definitely no way. Hence they are impossible. But now, what is he listening to?
Is it really possible to have so many features in a thin sheet of mask which is almost akin to a transparent film? And Shao Rong even said that the one he saw was just one feature among so many others. It means there are more than this one feature.