Abstract
This chapter summarizes the book’s key arguments and findings. One of these are that there is a series of tests that can help determine how speculative an individual conspiracy theory is. Another argument is that conspiracy theorists are as likely to be men as women, are liable to be poor in terms of finance and formal education, and share a host of other demographic traits. Yet another argument is that the prevalence of conspiracy theorizing in the United States has declined since the mid-1960s. And a final argument is that conspiracy theories follow a stragic logic grounded in shifts in political power. The chapter then considers the prospects for making and breaking conspiracy theories, presents policy recommendations and implications, and discusses directions for future research.