In order to account for how organisms can apprehend the contents of the external representations they manipulate in cognizing, the endorsement of representationalism fosters a situation of what I call cognitive overdetermination. I argue that this situation is problematic for the inclusion of these external representations in cognitive processing, as the hypothesis of extended cognition would like to have it. Since that situation arises from a commitment to representationalism (even minimal), it only affects the viability of representationalist versions of extended (...) cognition. (shrink)