 Together with the assumption (made by Horgan and Tienson and by Kriegel) that phenomenology is narrow (i.e., shared by intrinsic duplicates), the thesis of phenomenal intentionality yields an internalist theory of experience content. This introduces another respect in which phenomenal intentionality stands opposed to some versions of functionalist informational theories of experience content—namely, those versions that hold that the only contents experiences can have are those had in virtue of the functional properties of the sort discussed in  Section 8.2.  If the thesis of phenomenal intentionality is true and phenomenology is narrow, then there are narrow contents that are constitutively determined by phenomenology. Any objections to narrow content will thus also apply to this thesis. For further discussion of narrow content, see the entry on  narrow content.