In which we talk about Steven Universe, Tumblr, and the steam engine fandom. Contains very few spoilers about any of these things, but a lot of thinking about the infrastructure of fictional worlds and what counts as a fandom, anyway. The Autistic Tony Stark fic is "Don't Say It" by bibliomaniac - you can find it here: http://archiveofourown.org/works/7838281. We also talked about "How the Mouth Changes Its Shape" by breathedout (http://archiveofourown.org/works/704773). If you get excited by The Avengers and/or Sherlock, you should read them both, but the second will take you a lot longer.