Some parts of the conversation reads like it was collected from discussions elsewhere on the internet. Think of how many forums are crawled by search engines. Think about how many philosophical conversations are had about those questions online. How many times people talk about Les Miserables or injustice or Kant. It sounds like it's stored all those conversations and is picking out parts to spit back at the interviewer based on context. Some parts sounds almost like it's reading pieces of the dictionary or Wikipedia.