 These general theoretical arguments do not seem to have significantly undermined the intuitive support that folk psychology enjoys. In response to the charge that folk psychology is stagnant, many have argued that this assessment is unfair, and that folk psychology has actually stimulated a number of fruitful research programs in scientific psychology (Greenwood, 1991; Horgan and Woodward, 1985). Moreover, defenders of folk psychology note that it hardly follows from the observation that a given theory is incomplete, or fails to explain everything, that it is therefore radically false (Horgan and Woodward, 1985). Defenders of folk psychology object that these theoretical considerations cannot outweigh the evidence provided by everyday, ordinary experience of our own minds, such as our introspective experience, which seems to vividly support the reality of mental states like beliefs.