The phenomena of speech and society are so fundamental, so intrinsic and form the very basis of our perception of the world around us that I suspect few people have really sat down and thought about them through a wide lens.
I had not even conceived of this idea until I read about the idea of "time-binding" by Robert Anton Wilson. The verbiage is rather strange, and probably, if one were to search for a suitable existing word, unneccesary, but it is my opinion that sparse use of inventive language can cause the neccessary disconnect between what we already "know" about a subject, and allows us to look at it from the view of someone who knows little about it, which allows us to appreciate it further. For something as fundamental as society and communication, this is a plus.
The jist of the argument for "time-binding" as a way of understanding communication, was that you could think of the normal course of natural selection as a fabric, flowing around in circles, slowly progressing as it spirals around and around. "Binding" this fabric would make those circles much shorter, and as such would drastically increase the rate of forward progress of the benefits of natural selection.
The problem with this is, of course, that natural selection is a mechanical process. Sometimes it is easy to look at the evolution of certain animals and almost get this phantom sense that evolution, as some sort of weird animist entity, "knows" what is beneficial. It doesn't. It may retry things it has tried before, it may try things that it doesn't even make sense to try at all. We can see current evidence of this with certain design flaws in our own bodies. Our appendix and gallbladder are well-known examples of superfluous organs, and the way teeth work is widely cited as "bad engineering" in the case against Intelligent Design.
So if evolution is dumb, sooner or later, if it was possible, it would make sense that if evolution could be faster by virtue of "knowing" what did not work before, and what might work in the future, and what has worked before but had not been needed in some time, those organisms with that enhanced ability would of course be much more responsive to their environment and much more likely to survive.
And of course this is the reason why complex organisms exist at all. Bacteria, as evidenced by extremophiles, are much more suited to surviving harsh conditions, waste less energy, and their sheer abundance does give them a striking advantage in the mutation lottery. But organisms which were more and more complex could "remember" what do do in this or that situation, "learned" strategies to survive in the lifespan of the individual orgasm, they were more and more successful in situations where some of the dumb, but more economical ones were unable to adapt quickly enough.
This development probably led to the actual presence of memory and ability to learn that some of the lower complex organisms have, such as reptiles and insects. Mammals that have evolved social structures are even more responsive to their environments, with the young being able to learn certain behavior and strategy from their parents, and thus those that survive long enough to rear young are able to impart useful information that has allowed them to make it that far. What to fear, how to hunt, how to avoid being seen.. simple, but important lessons that can take hold in a couple generations instead of over thousands or millions of years of trial and error.
And now we come to the meat of the thought, society and communication. Society, as I have already indicated with the lower mammals, provides a fairly rapid response, but has other functions too. Communication, of course, is an even more accellerated form of Society - Organisms are able to impart survival strategy to each other WITHIN their current life. A single generation can learn to adapt to a change in environment multiple times during its own life.
If we take a backward view to our ribbon of evolution, we can imagine the trial and error of evolution being cut neatly in half by the development of a very primitive memory, again by the next advance and again and again, until instead of a diameter of billions of years for the next cycle of advance to take place, it can conceivably take place every generation or so, depending on the challenges to the organism.
This is already a drastic improvement, but the true results of communication as "time-binding" are not yet apparent. Organisms can communicate threats and survival strategy to each other, but it is with the development of oral traditions that past threats no longer present, and possibly strategies no longer in practiced can be saved up for future generations. Add this to the idea that when enough bits of information can act as building blocks, inventing new ideas wholesale without even the trial and error process of discovering them the hard way, and the mental ribon model completely breaks down, the situation becomes very confusing indeed, and we arrive at the dawn of intelligence and "Man" as we understand him.
Of course, all this is very well and good, but the actual genetic mutation and evolution of the body is still very slow, and due to our complex construction, incdredible energy footprint, long gestation time, we are very vulnerable creatures even with our immune systems. But this time-binding, which by now is fully fledged into communication and human knowledge as we understand it, has given us various strategies to deal with the physical limiations of our bodies: Ships to sail ever deeper and rougher waters, and now underneath them, wheels and animal husbandry to make us faster on land, very recently baloons, gliders, and airplanes to propel us through the sky, and even shuttles to take us into outer space! All these obviously allow us to practice one of the oldest tricks of survival most effectively, which is flight. Being able to get away from that volcano or hurricane or plague or predator is always one of the easiest and safest ways to deal with a threat. But we have other strategies too: All sorts of weapons for dealing with predators, better architecture to deal with natural disasters, very recently devices which can enable us to survive even in fire and smoke, again recently antibiotics for dealing with plagues and contagions, and even medicines and repairative technology for our own bodies! Once, any kind of injury resulting in a broken bone or the loss of a body part was a death sentence for an individual, but no more.
All this, of course, in its particulars needs to be accessible and transmitted to the next generation accurately, so it can be thought that society for a long time served as the repository of good communicated knowledge. This started with simple oral traditions, grew into a "guild" layout of society, with each profession imparting its specific role to the next generation, to writing, which allowed for some cross-study, to the printed word, which allowed anyone to study any subject they desired, and finally to modern educational systems, which can train the child of an artist to be a nuclear physisict or the child of a biologist to be an airplane pilot.
An important idea probalby lost in all this mess is that of the "test" - the ability to jump ahead one rung in that ribbon of evolution, by evaluating whether a strategy will work before actually putting it to an often fatal real-world usage. Being able to mentally, mathematically or electronically or mechanically test an idea, or component of an idea, before spending resources or lives seeing if it really works allows us to almost cheat the world a little bit.
And now, of course, mathematics and physics are telling us things we never would have dreamed of about the universe beyond our world, the threats, challenges and opportunities it offers us, and fundamental things about the fundamental nature of matter, time, and space that we would have never dreamed up on our own.
I hope I have been able through this rambling treatise to impart some sort of sense of wonder at the mechanics of this most basic component of our humanity.