David J. Chalmers (2008), foreword to Andy Clark, Supersizing the Mind: Embodiment, Action, and Cognitive Extension, Oxford University Press, pp. ix–xvi — DOI-10.1093/acprof:oso/9780195333213.002.0007
Standing in the record
Filed on 2026-10-02 at the owner’s request, as part of the extended-mind programme of David Chalmers. It introduces Clark’s book (LIT-412), which reprints LIT-097 as its appendix. NOTE-369 is the close reading of the same day, and it placed the work: Active.
It carries LIT-097 further, and corrects one of its replies. Clark invited it as “a retrospective perspective on that article”. It extends the 1998 thesis to new cases: the iPhone as memory, desire, calculator and planner; and, tentatively, extended desire, perception (the phone’s camera) and mood. It corrects the 1998 reply that Otto’s access to the notebook need not be perceptual: “this is surely too quick: there is no denying that Otto sees the notebook and reads from it”. It also reports that the “notorious footnote” ordering the authors by degree of belief does not mean Chalmers rejects the thesis; he is “more confident of the thesis than I was a decade ago”. NOTE-180 flagged that footnote as mattering for any attribution to Chalmers, and this settles it.
What it says the thesis reaches. Standing beliefs and processes, and plausibly other non-conscious states. Not consciousness, at least “in our world”: an argument for extended consciousness would need internal duplicates who differ in experience (an “Olga and Twin Olga” case), and no Otto-style story yields one. He grants that the physical basis of consciousness could extend in other possible worlds, for instance if part of the neural correlate were moved to “a module on one’s belt”.
On the hard problem. The foreword separates the two questions explicitly. “Functionalism about consciousness is implausible”, Chalmers writes, but that “does not affect the arguments for the extended mind thesis”, which need only the parity principle’s “very weak functionalism”. The thesis is “compatible with both physicalism and dualism”. So, on his own account, accepting the extended mind commits nothing about the hard problem, which his work being filed in this record in the same batch treats.
On THEORY-043. The foreword offers a reason why experience might stay internal while cognition extends: “the physical basis of consciousness requires direct access to information on an extremely high bandwidth”. That is the bandwidth idea Andy Clark developed, and it is the high-bandwidth objection Schwitzgebel answers in LIT-159 §6 (NOTE-131). Chalmers abandoned it in 2019 (LIT-415) for directness of access. So the version of the architectural criterion on which THEORY-043 would have to rely is the 2019 one, not this.
On AI tools. The iPhone paragraph is the founding image for the question NOTE-180 left open, whether a user’s assistant can be part of the user’s mind. The foreword’s answer is yes for its stored information and its functions. But by its own Necker-cube moral, for the question “why did he reach for the phone?” the user lacked the belief. It carries no instruction for machine-learning practice.