Let's take the very fundamental function of pointing. Every human language is rife with words called deictics that anchor the flow of utterance to specific pieces of the immediate environment. English examples are words like "this", "that", "near", "far", "soon", "late", the positional prepositions, pronominals like "me" and "you" -- the meaning of these terms is grounded dynamically by the speakers and hearers in the time and place of utterance, the placement and salience of surrounding objects and structures, and the particular speaker and hearers and overhearers of the utterance. Human pointing -- with the fingers, hands, eyes, chin, head tilt, elbow, whatever -- has been shown to perform much the same functions as deictic speech in utterance. (See the work of Sotaro Kita if you're interested in the data). A robot with no mechanism for pointing and no sensory apparatus for detecting the pointing gestures of human agents in its environment will misunderstand a great deal and will not be able to communicate fluently.
Are you really claiming that ability to understand the very concept of indexicality, and concepts like "soon", "late", "far", etc., relies on humanlike fingers? That seems like an extraordinary claim, to put it lightly.
Also:
A robot with no mechanism for pointing and no sensory apparatus for detecting the pointing gestures of human agents in its environment will misunderstand a great deal and will not be able to communicate fluently.
"Detecting pointing gestures" would be the function of a perception algorithm, not a sensory apparatus (unless what you mean is "a robot with no ability to perceive positions/orientations/etc. of objects in its environment", which... wouldn't be very useful). So it's a matter of what we do with sense data, not what sorts of body we have; that is, software, not hardware.
More generally, a lot of what you're saying (and — this is my very tentative impression — a lot of the ideas of embodied cognition in general) seems to be based on an idea that we might create some general-intelligent AI or robot, but have it start at some "undeveloped" state and then proceed to "learn" or "evolve", gathering concepts about the world, growing in understanding, until it achieves some desired level of intellectual development. The concern then arises that without the kind of embodiment that we humans enjoy, this AI will not develop the concepts necessary for it to understand us and vice versa.
Ok. But is anyone working in AI these days actually suggesting that this is how we should go about doing things? Is everyone working in AI these days suggesting that? Isn't this entire line of reasoning inapplicable to whole broad swaths of possible approaches to AI design?
P.S. What does "there, relative to the river" mean?
Are you really claiming that ability to understand the very concept of indexicality, and concepts like "soon", "late", "far", etc., relies on humanlike fingers? That seems like an extraordinary claim, to put it lightly.
Yeah, I am advancing the hypothesis that, in humans, the comprehension of indexicality relies on embodied pointing at its core -- though not just with fingers, which are not universally used for pointing in all human cultures. Sotaro Kita has the most data on this subject for language, but the embodied basis ...
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