Showing posts with label Information theory. Show all posts
Showing posts with label Information theory. Show all posts

Saturday, 10 September 2011

The birth of human consciousness was a major information event.

Primary consciousness: Homo habilis used tools two millions years ago.

Consciousness and information

by Tom Thorne
Imagine the first time that human consciousness occurred. It may have been a eureka moment but I have a feeling that it came about much more slowly and probably was a result of millennia of evolution. 
What is consciousness? Are we the only species on this planet to be conscious? We are conscious in that we perceive not only ourselves in time, space and environments but we also can live in an anticipated future time and space. We see the potential for future change. We experience and then we innovate and alter nature.
Other animals can also perceive of themselves in the moment but can they anticipate future opportunities? In a limited way they can. A cheetah hunting gazelles will stampede the herd and focus on one victim until it is caught. It lives largely in the moment and hunts when it it is hungry. It follows the gazelle herd and is symbiotic to the herd's evolution by removing the weak.
Consciousness in other species is more debatable when some animals hunt in troops and guide prey to their final end. Humans did that for millennia much in the same way that a pack of wolves hunts to this day or as teams of velociraptors probably did in the age of dinosaurs.
Neanderthal planning and execution
The consciousness difference is when you learn from your experience and use that learning a year or season later to  achieve a known objective. There is a Neanderthal site in Spain that I visited in 1997 that demonstrates through its archeology that each year Neanderthals came to the site to take mammoths moving through the region on their annual migration. 
It was a kill site where these large mammals could be hemmed in by cliffs. This conscious act  takes information, knowledge organization of resources and planning skills that can only come with consciousness.  And this information was communicated effectively to each generation within the short 35 year lifespans of these early humans.
Neanderthals had to have had speech and language to achieve their hunting and also their gathering of food plans. They had to have language to create their weapons and hand axes and how to make them. Recent rethinking about their throat physiology shows that speech was likely in the Neanderthal world.
Consciousness is by its nature informational 
Consciousness is a state of our minds that we take for granted. We think it is very normal to think and plan ahead. Well it wasn't always normal. It developed in our species. But how? It is a kind of chicken and egg situation.
At what moment do you perceive a pebble as a tool? I suspect you pick up a pebble that had broken in nature and had a sharp edge. You accidentally cut yourself on the sharp edge. Then you realize (that's the key word) that the cut and the stone are related events. Consciousness is needed to make the links and see other uses for the sharp stone. It also helps to be bipedal and have a hand with with precision grip fingers and thumbs.
And so you look for other pebbles with naturally sharp edges and because they cut you accidentally you now know how to cut some meat you found or killed. You learned something new. You created a knowledge base because you are conscious of experience and you know relate your cut hand to a learning curve for cutting meat. Consciousness is information.
In the same moment you invented technology. The sharp pebble is now an extension of yourself. Yourself is also a concept of consciousness. At this moment there is probably not much language or very sophisticated speech but a thought goes through your newly conscious mind maybe as a slightly foggy or dim eureka moment.  
You call the sharp stone process "agh". Language has started because when you communicate the idea to others you say "agh".
Agh is now information. It is a short hand meme for finding sharp stones to cut things. Then one day someone else makes an improvement. They don't passively look for sharp stones they strike two together and make them. This new information is called Agh-tuh.
There is an archaeology that demonstrates that this process took place several million years ago so this isn't come construct of my consciousness or its cousin imagination.
High technology consciousness 
Imagine yet again our high technology times connected to this two million year old consciousness. Now the tool kit is electronic and controlled by  world wide cyber communication techniques. Millennia of technique laden feedback loops from that first sharp stone has created a series of and technologies that now almost mirrors human consciousness itself.
How is this environment interacting with our consciousness? Our brains are now surrounded by information techniques and our knowledge base probably doubles or triples each year. Learning in this environment is a highly prized skill and communicating new knowledge is a constant ongoing activity. Language extremely sophisticated to keep up with the developing techniques. 
Our species  homo sapien sapien could be renamed homo sapien technolensis because we are now routinely incorporating our high technologies into our bodies. I know of a patient who has two electronic implants in his brain to help control his medical condition. These implants can turned off and on and fine tuned with a remote device like a channel changer.
People are routinely getting new synthetic joints in their knees and other joints. The techniques we are developing in the Information Age are not just extensions of our bodies they are now incorporated inside our bodies. This is an important development of human conscious techniques. Certainly it may be a seminal as the sharp stone discovery.
Imagine a homo habilis chipping their pebbles to make the first tools and reflect on how that moment in time almost two million years ago has developed into high technologies we now use. What an information and knowledge base that early or maybe first conscious act has built up.
© Copyright 2011, Tom Thorne, All Rights Reserved.

Thursday, 1 September 2011

Information is fundamental to life on Earth.

DNA: A primordial information system

The origin and meaning of information

by Tom Thorne
When we use the word information we tend to think of it in sets of defined signs and codings that we use to record content and ideas we come up in our minds. Today I am using text like this one to represent my information and content distributed in this case via the intranet through a series of sophisticated microelectronic techniques of linked devices and protocols that are networked endlessly together. Information is a technique devised by human thought to record, and distribute thinking and content. It uses media to achieve that objective.
However, there is on this planet a natural information encoding system for  living things that we call in our science language Deoxyribonucleic acid (DNA) made up of two intertwined polymers of nucleotides and held together by sugars, phosphates and ester. How DNA stores information is determined by sequences of amino acids, and proteins and how they are arranged. 
The man made information or thoughts and memes are recorded using alphabets, symbols and mathematical signs to represent ideas. DNA uses biochemistry.
The natural information like DNA coding that is found everywhere on this planet in plants and animals is also information encoding the content that makes up life. It is the same for most life on Earth excluding viruses. DNA records and encodes genetic information.
Information to exist must be encoded and decoded easily.
Information is represented by codes of all kinds. It can be as I said above a technique of a sentient creature or it can be a natural encoding that evolved in nature  as the basis of life. One fact is clear. The information of DNA encoding is the basis of all technique encoding devised by sentient beings on this planet. You can not have one without the other for they are a symbiosis.
There is other information that nature encodes. There is the world of physics which predates DNA or more accurately provides the chemical building blocks of DNA.  There is the physics of the Universe that seem in some cases to defy our attempts to unravel the information system that makes it all work. However we are the first products of this information system capable of trying to understand the making and workings of the Universe using our technique science. The information base of the Universe is still in much debate using sciences that are often closer to philosophy.
Memes are brain ideas that can affect evolution when recorded and distributed by human information techniques.  
So we have information techniques to record our thoughts and memes. We use our DNA devised brains to unravel the natural world which we encode as knowledge using our information techniques. There is a built in bias to our communications and we strive constantly to be accurate and correct discovering the origins of our being.
When DNA was devised in nature that led ultimately to ourselves and our techniques. This process made no attempt to be accurate or correct as humans and other lifeforms evolved. We simply evolved by natural selection over time and DNA came up with us as our information. That seems to be the case. The information of DNA is inaccurate and filled with redundancy and yet that very inaccuracy enabled enough change to occur that ultimately gave rise to  the life on Earth and ultimately a human brain.
This inaccuracy is also expressed in the mechanics of the Universe and it seems that inaccurate information gives rise to very useful outcomes such as the distance this planet is from a sun that is half way through its life cycle. That fact enables DNA  and all life to exist here. 
In that situation DNA arose or at least we think it arose only on this planet. However, everything we do and are was a result of inaccurate and chance happenings to DNA. To unravel these mysteries we devise an information system which we call science. The prized aspect of science is its testing of hypothesis and the accuracy of the work done in its name.
There is no intuition or chance or serendipity in this science information system. It collects data, which can be come information and ultimately knowledge when its proved or linked together with other information until we have a fact or a series of facts that we can prove. Human science is an informational technique that in its protocols of accuracy enables us to understand everything from DNA itself and perhaps even the Universe that gave rise to DNA in the first place.
The Information Age was born when early humans scratched a bone with a mark that recorded the actions of the moon in the night sky.
When it comes to simple human devised information systems such as scratching bones with meaningful markings, and later  hieroglyphics or alphabets,  these systems are used to record important ideas and memes that remain outside of the human brain. It is a system to record thought. Later this same system evolved into a medium of clay tablets, papyrus scrolls, and manuscripts which to pass them on had to laboriously copied and maintained as history.
It becomes more complex when information becomes mechanized through new techniques such as movable type and the information is spread quickly  by easily providing multiple printed copies. This information spreads memes and ideas with greater speed than a scroll or manuscript. It devises multi chaptered books, periodicals and even advertising flyers.
We call our times The Information Age and that may be a good designation for our times. But part of the information age that is really important is the unraveling of DNA and the Human Genome itself. In this sense our times are truly the Information Age because our brains are capable of examining how we came about and how this natural information systems works. Add to this the physics of the Universe and comprehending how within this information system we exist, truly brings new meaning to what we call The Information Age.
© Copyright 2011, Tom Thorne, All Rights Reserved.  DNA animated Gif: Wikopedia
Further Resources
Here is a list of books that examine these issues that I have recently read and found useful. Two are by Richard Dawkins, his good books in my view, and not spoiled by his silly anti religious notions he put out in The God Delusion. 
The James Gleick book The Information is an important volume that reviews the topic of information very well. The Nick Lane book Life Ascending looks at where DNA comes from and how it gave birth to consciousness. 
The Ancestor's Tale: A Pilgrimage to the Dawn of Life, Richard Dawkins, A Phoenix Paperback, London, 2004, ISBN: 0-75381-996-1
The Greatest Show on Earth, The Evidence For Evolution, Richard Dawkins, Free Press, New York, London, Toronto and Sydney, 2009, ISBN: 978-1-4165-9478-9, also available as a e-book same ISBN last digit 0 rather than 9.
Life Ascending: The Ten Great Inventions of Evolution, Nick Lane, W.W. Norton & Company, New York, London, 2010, ISBN: 978-0-393-33866-9
The Information, A Theory, A History, A Flood, James Gleick, Pantheon Books, New York, 2011, First Edition, ISBN: 978-0-375-42372-7