[kawa]

(Spoilers) I think that the part about the guy who's brain traveled to the Trisolarians and communicated back by telling a fairy-tale may be a story about the author himself: He's also in an authoritarian regime and unable to tell things face value, so he communicated by telling a "fairy-tale" (SF in his case) full of metaphors which needs to be decoded by the reader first to get the real meaning.

Ok, maybe I'm reading to much into it, but if it was to obvious, Liu would get intro trouble, so plausible deniability is important. But I think that the books are much more political as many think. But you need to decipher it first...