You have graciously borne with me in considering communication by wordless inference, in both non-intentional (“natural”) and intentional (“conscious animal life”) circumstances. I used inverted commas in my parenthetical characterisations because I’d like to allow for non-intentional inference in circumstances that aren’t simply “natural”, and because I want to be careful about what I say about intentional communication among some animals (without prejudging the circumstances for or against). Clearly animals interact in ways that seem to imply “communication” of some sort — and again, that’s all I’m after at this point.
I’m ready to add words to this picture, but please allow me to do so not all in a rush, but very slowly and carefully. Let’s go back to Margaret and me communicating; you’ve already allowed that we can get by, when we need to, without words (for topics that don’t require intense intricacy or precision). Once we begin to add words into the picture, our capacity to communicate effectively enters an entirely different domain of economy, precision, and effectiveness. We’re about to go buy some groceries; if we had to work out our shopping list, indeed even the premise of “going to the grocery store”, without words, we would take a very long time and might not arrive at a fully agreed agenda. With words, we can assent to the premise of a shopping trip, determine what we anticipate purchasing, and change our plans on the fly with minimal trouble. Yes, sometimes we misunderstand one another and find ourselves at cross purposes — but compared to the practice of communicating for such errands without using words, our verbal communication functions with fabulous ease and success.