 On the downside, the account isn’t neutral on questions of semantic theory. On the contrary, it requires us to reject any form of pure input semantics, in favor of some sort of consumer semantics. We cannot then accept that intentional content reduces to informational content, nor that it can be explicated purely in terms of causal co-variance relations to the environment. So anyone who finds such views attractive will think that the account is a hard one to swallow. (For discussion of various different versions of input semantics, see Dretske 1981, 1986; Fodor 1987, 1990; and Loewer and Rey 1991.)