This was very interesting, seeing how people can change depending on who they are "pretending" to be, how that applies to potential environments and so on. Plus all of the links in to other works from narratology to Verisimilitude, understanding how something appearing realistic can affect us because we distinguish it as being real.  
I would say that I would have enjoyed an exploration on gender, as we are exploring changing avatars so it would have been interesting to see some commentary on that.