as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
system
why can't house prices be out of tune with salaries
user
i'd suggest changing the subject when your friends talk about real estate to save your sanity and friendship.  there's a difference between "belief" and "knowledge". arguing with a believer isn't a very productive course of action, and will ultimately poison the friendship. reality is a harsh mistress.
assistant