Showing posts with label ants. Show all posts
Showing posts with label ants. Show all posts

Monday, May 15, 2017

Make the Anthill Great Again! The Ant Colony and the Human One



Image above: the 1998 movie "AntZ". This post was inspired by a post by Antonio Turiel titled "Of Ants and Men" where he used the example of an ant to discuss the difficulties that humans have to perceive the real problems facing humankind today. Here, I examine again, a little more in depth, the same issue.


Imagine yourself as an ant. What would be your perception of the world? Mainly, it is other ants from the same colony. As an ant, you are nearly blind but you have an excellent sense of smell and most of your sensorial inputs are the pheromones you receive from your sister ants that then you transmit to other ants. This kind of feedback-based pheromone exchange may lead to remarkably complex behaviors. Yet, the colony has no structure that we could see as a brain. If we define "self-consciousness" as the capability of a creature to model itself, the colony doesn't have this capability. It can react to external stimuli, and it can do that fast. But it can't plan for the future. It is the same for single ants: for them, the colony is a set of smells; they don't really perceive it.

Now, zoom back to your condition of a human being reading a blog post. What's your perception of the world? You are probably smarter than the average ant, but, like an ant, your perception of the world is mainly shaped by the pairwise contacts you have with other human beings, members of the same colony. These stimuli are verbal, not olfactory, but the mechanism of transmission and retransmission is the same. Like an ant, you are continuously exposed to stimuli from the media and from social networks that you then retransmit to other humans. This often generates transient bursts of reinforcing feedbacks that may generate rapid, even violent, collective reactions on the part of the whole colony. But the human colony doesn't have a brain, it can react to external stimuli but it can't plan ahead. Those large human colonies called "states" don't show an intelligent behavior; not more than ant colonies do. States explore their environment, compete for resources, occasionally fight each other, at times very destructively. But these are behaviors that ant colonies engage in as well.

Of course, single human beings have abilities that ants lack: they are self-conscious in the sense that they can model their environment and themselves. They even have specific brain structures dedicated to this purpose, such as the "mirror neurons" used to model the behavior of other humans. But all this doesn't seem to affect the behavior of the colony. The sophisticated modeling capabilities of human brains seem to be used mainly to gain an advantage in playing the sexual competition game between individuals. Outside of this realm, most humans probably see their "country" mostly as a semantic entity created by simple messages related to defense and attack. They have no perception of the immense complexity of a giant human colony of tens or hundreds of millions of individuals.

Theoretically, however, the power of the human brain could be applied to the management of the colony. In history, we see the widespread attempt to place a single human being - that is, a single brain - in charge of the activity of the state. That sometimes leads to attempts of planning for the future of the whole colony, but it often backfires creating disasters. A single human brain cannot manage the immense complexity of a human state. Dictators, kings, emperors, and the like are normally just as clueless about the system they are supposed to manage as their subject. Maybe as clueless as the ants of an anthill.

Yet, something changed in recent times. We may see the appearance of "world modeling" in the 1970s as the serendipitous awakening of consciousness in the human colony. Digital computers made it possible to perform studies such as the 1972 "The Limits to Growth" that modeled society on the basis of quantitative data and projected the results to the future. It was the first time in history that society could really plan for the future. In particular, the models identified a phenomenon scarcely known before: it was called "overshoot", the tendency of society to overexploit its resources and then collapse. The models could be used to plan ahead and avoid collapse.

But, as well known, these studies had little or no impact and the world's human colonies continued their blind path toward collapse. This is probably understandable. The emergence of complex structures such as brains is driven by evolutionary competition. Humans developed their large brains as tools for inter-group sexual competition. But states or industrial companies compete by exploiting the available resources as fast as possible. They have no advantage in the capability of planning for the long term, especially when the results of the planning is that they should slow down the exploitation rate. Doing that would only give more chances to their competitors who don't. So, the behavior of human colonies remains dictated by one very simple rule: grow as much as possible and don't care about anything else.

It is the same for ants: eusocial ant colonies have been around for more than 50 million years. If anthills had benefitted from being self-conscious, there was plenty of time for natural selection to create that characteristic. Instead, it seems that the intelligence of both individual ants and of ant colonies is optimized for the survival of the anthill. There is evidence that social insects are less intelligent than their wild counterparts as a result of the colony taking over in many tasks that were once for the individual to deal with. The same phenomenon may be taking place in human colonies: human brains have been shrinking during the past tens of thousands of years. The trend may have been greatly accelerated in recent times by the development of social networks on the Internet.

In the end, it may well be that the evolution of the human species is leading it to develop a eusocial behavior similar to that of social insects such as ants or bees. That would possibly entice an overall reduction of individual intelligence, not completely compensated by an increase in societal intelligence. Eusocial human colonies would keep competing against each other for the available resources as they ar doing now. As a eusocial species, humans might be very successful, just as eusocial ants have been very successful in the insect world. But, on the whole, these eusocial entities would not be self-conscious and wouldn't engage in long term planning

Yet, the future remains impossible to predict: humans are clever monkeys and you never know what they may be able to invent. There may be ways to make the human colony conscious and that would lead to a whole new spectrum of behaviors that, at present, we can only vaguely imagine. For the time being, it seems that we can't do much more than blindly keep at the impossible task of making the anthill great again.





Some references

Ant colony as an emergent phenomenon http://www.ulb.ac.be/sciences/use/publications/JLD/221.pdf

The brain of social insects shrinks in size http://serious-science.org/ant-wars-6652

The social brain hypothesis, Dunbar http://psych.colorado.edu/~tito/sp03/7536/Dunbar_1998.pdf

The social brain hypothesis doesn't apply to social  nsects http://phenomena.nationalgeographic.com/2015/06/16/the-distributed-brainpower-of-social-insects/

Evolution of Ants starting from early Cretaceous, 100 million years ago. Article by Wilson and Holldobler http://www.pnas.org/content/102/21/7411.full

On the shrinking human brain. https://www.scientificamerican.com/article/why-have-our-brains-started-to-shrink/

Thursday, May 11, 2017

The Apple and the Ant




Antonio Turiel keeps what I think is one of the best blogs in the world (perhaps the best) dedicated to energy and fossil fuels: The Oil Crash. Too bad that, despite the title, the blog is written in Spanish. But if you can read Spanish or are willing to spend some time to decipher a Google translation, then you can truly learn a lot from Tutiel's blog. One of the best recent posts is titled "De hormigas y hombres," that is "Of ants and men". 
Image "Ant man" from the 2015 movie.



Reality can be only what you can perceive and it would seem that nothing can exist - for you - beyond your perception sphere. Out of it, there is the realm of the "unknown unknowns" as defined by Donald Rumsfeld, the "black swans" described by Nassim Taleb. But, in practice, there is a twilight zone in which you can vaguely perceive that "something" exist out there. Some only partly unknown unknown that you perceive enough that you realize you should be worried about it. But you don't know how and why. 

One way to perceive the unperceivable is to imagine yourself as someone or something who/which faces a similar plight, but one that you can understand. The task of understanding dimensions beyond the third for creatures like us, who live in a three-dimensional world, was beautifully described by Edwin Abbott in "Flatland," a story set in a purely two-dimensional world.

Another metaphor for the difficulty we have in understanding some concepts is that of ants or other social insects: splendidly organized creatures but very limited in their capabilities as single members of the group. Do ants understand that they are part of an ant colony? Probably not; they only perceive other ants. The colony is an emergent phenomenon that no single ant or group of ants ever planned or even perceived. 

In his post on ants and men, Antonio Turiel describes a metaphor that starts from another characteristic of ants, their very poor eyesight. That serves to underline another kind of human limitation: the inability of seeing beyond the narrow limits of what we see and hear in the media. Turiel describes an "ant-man" who has good smelling abilities but cannot see beyond a very short distance ahead. This ant-man is more intelligent than a regular ant and can plan ahead, even by sophisticated ways of reasoning. But he lacks the capability of seeing above himself at any distance. 

Let's assume that this ant-man smells an apple. He knows that the apple exists and he moves in the direction that makes the smell stronger, knowing that he is getting closer and closer to it. But, at some moment, he finds that, bizarrely, the smell starts diminishing while no apple is perceived by the ant-man's antennas or mandibles. So, the ant-man embarks in a series of scanning strategies to try to find the apple; first going linearly up and down, then moving in a spiral, and more. But he cannot find the apple for the simple reason that it is above him, hanging from the branch of a tree. Eventually, the ant-man dies of starvation. 

Here is an excerpt from Turiel's post (translated from Spanish):

"The metaphor of the ant-man is useful for us to illustrate the dilemma that the Western Societies have been facing lately: the lack of dimensional of the debate. During the past two years, we saw several countries engaging in a crucial elections, always with just two choices: the Greek Referendum, Brexit, the election of Donald Trump... Last week-end, it was France's turn, with the competition between Emmanuel Macron and Marine Le Pen. The winner was the former, with great solace of the financial markets and of the European Commission. In all these cases, a society that sees its way of life in danger, a society that knows it is being slowly but inexorably moving toward collapse, looks for new directions to move. In the same way as the ant-man of our story, society first moves following straight lines; initially in the classic alternative of left and right, but being those lines totally discredited (as in France, where neither the Socialist party nor the conservative UPM reached the second turn in the elections) people start looking for new directions. It is not casual that all this succession of elections that we have been discussing were choices among two alternatives: it is a movement between two extreme points, it is a straight line search. It is the most banal strategy, but the way in which our society has been working up to now. There was no need of anything more complex." <..>

"There will come a time, as desperation spreads among the dispossessed middle classes, when this linear movement between two opposing and equally useless options will be abandoned and a spiral movement will begin, probably when the level of abstention is so high that it will destroy the legitimacy of two-choice elections. Arriving at this point, desperate solutions will be pushed by the dire conditions of the majority of the population. We commented on this point recently when discussing the end of growth: more than a quarter of the Spanish population is at risk of poverty and exclusion, and that when GDP saw two years of growth, unlike other countries around us. The whole possibility of getting out of the hole in which we find ourselves is that growth continues and at a good pace, but that is a chimera."



And there we are: totally unable to conceive the real terms of the problem. Nobody realizes that behind everything that's happening around us there is a physical problem: the deadly combination of resource depletion and ecosystem disruption. Our society is an emergent phenomenon which we cannot really perceive, full of unknown unknowns and our desperate two-dimensional search of something that will save us is hopeless: left or right, it doesn't matter. We are blind like ants unable to see the apple hanging from a tree above them.



Read Turiel's whole post (in Spanish) on "The Oil Crash"










Who

Ugo Bardi is a member of the Club of Rome, faculty member of the University of Florence, and the author of "Extracted" (Chelsea Green 2014), "The Seneca Effect" (Springer 2017), and Before the Collapse (Springer 2019)