 The problem for content can be seen when we consider mechanisms that produce or consume representations. For instance, the frog’s detection device was selected because it (a) responded to small, dark, moving things and (b) that helped the frog catch these things, and (c) that provided the frog with nutrients and (d) that contributed to the frog’s chances of survival and reproduction in various ways. Thus ancestral detection devices contributed to the selection of that type of device by way of a complex causal route in which the visible configuration of the stimulus and the nutritional properties of the stimulus both play a role. Note that this does not depend on these features of the environment being locally co-instantiated. Even if not all small, dark and moving things were nutritious and not all nutritious things were small, dark and moving in the frog’s natural habitat, this problem of complex causal roles would still remain. The problem is that the systems responsible for the production and the consumption of representations were selected for complex causal roles in which a number of environmental features were involved.