The idea of empathy is something that I have been questioning this whole time. Identifying a human on the basis of very subjective criteria means consequences that are completely unintended. Pris is a really interesting example of the kind of "lack of affect" that we see in some people with emotional disorders. I also find it very strange the the people who have been identified as Pris's familiars do not have the same problems adjusting to their lives on Earth. I think the android's preoccupation with the pre-war literature is also something that I can't quite wrap my head around.