Must Compatibilists Be Internalists?

Abstract

This chapter identifies three lines of thought that build bridges from compatibilism to internalism about moral responsibility and argues that all three are seriously defective. The three lines of thought are due to Richard Double, Harry Frankfurt, and Gary Watson. Thought experiments discussed include radical reversal stories and an original-design story in which a goddess creates a zygote and implants it in a certain woman at a certain time because she wants it to grow into a being who will perform a certain deed thirty years later. Differences between these two kinds of thought experiment are discussed.