Slow burning is the world. I feel that the author keeps dropping some clues and hints about how the story will unfold... It seems that the Idiot may not be the main protagonist after all, but a kind of observer who will be engulfed into the problems of the Epanchins...

Yeah! He has just arrived in StPetersburg and has already gotten himself a job, a lodging and 25 rubles ^^ It's like a "rags to riches" plot