Harnad''s proposed

robotic upgrade

of Turing''s Test (TT), from a test of linguistic capacity alone to a Total Turing Test (TTT) of linguistic
and sensorimotor capacity, conflicts with his claim that no behavioral test provides even probable warrant for attributions of thought because there is
no evidence
of consciousness besides

private experience

. Intuitive, scientific, and philosophical considerations Harnad offers in favor of his proposed upgrade are unconvincing. I agree with Harnad that distinguishing real from

as if

thought on the basis of (presence or lack of) consciousness (thus rejecting Turing (behavioral) testing as sufficient warrant for mental attribution)
has the skeptical consequence Harnad accepts —

there is in fact
no evidence for me that anyone else but me has a mind

. I disagree with his
acceptance of it! It would be better to give up the neo-Cartesian

faith

in private conscious experience underlying Harnad''s allegiance to Searle''s controversial Chinese Room

Experiment

than give up all claim to know others think. It would be better to allow that (passing) Turing''s Test evidences — even
strongly evidences — thought.
Key words Animal intelligence - artificial intelligence - causation - consciousness - Chinese Room Experiment - Descartes - intentionality - other-minds problem - Searle - subjectivity - symbol grounding - Turing - Turing''s Test