Computational Intelligence and Consciousness

Eduardo César Garrido Merchán

In recent years there have been many advances in artificial intelligence, especially in the field of automatic generation of texts and images that sometimes compete successfully with human productions. In light of this, the media, and even some scientists, have rung the bells announcing that we are on the verge of creating conscious artificial intelligence, which would compete with human beings as our equal. But others believe that this goal, if it were possible (which is not clear), is much further away than some think.

In an article signed by Eduardo César Garrido Merchán and Sara Lumbreras and published in the journal philosophies with the title Can Computational Intelligence Model Phenomenal Consciousness, the authors review Bertrand Russell's analogy, which asserts that consciousness and intelligence are closely correlated. In other words, any entity that possesses consciousness will also possess a high level of intelligence, and vice versa. In a way, this analogy is similar to the Turing Test, which is much better known.

Neuromania and Darwinitis

Raymond Tallis

Chapter 11 of the book The Naturalist Worldview of Moisés Pérez Marcos, which I discussed in the previous post, is dedicated entirely to the philosopher and neuroscientist Raymond Tallis, who despite his atheistic religious stance opposes some of the modern exaggerations of reductionist naturalism. Tallis published a book in 2011 titled, significantly, Aping Mankind: Neuromania, Darwinitis and the misrepresentation of humanity. This book describes two very widespread philosophical pathologies, which emerge from professional journals and educated colloquiums to discussions in the pub or TV screens. (Pérez Marcos, paraphrasing Tallis). They are the following:

A model for ChatGPT

How does ChatGPT work? Suppose we ignore for the moment that ChatGPT uses an artificial neural network, and represent its algorithm in the traditional way. This algorithm can be divided into two parts:

1. Training: ChatGPT is provided with data (text files), which are used to build two data sets:
1. A list of all the words that appear in any of the texts, without repetition, regardless of their order or the number of times each one appears.
2. An array of indices to the word list, reporting the number of times a given word occurs after a series of words. For example, if the following series appears in the texts: time travel, the indices of the words travel, and time will appear in the array, followed by the index of the next word, followed by the number of times that this sequence of three words appears in the set of texts used for training.

Theories about self-consciousness

Svetlana before the mirror
Painting by Karl Briuliov

As I have said in other posts in this blog, the question of self-consciousness is more philosophical than scientific. In this regard, two great philosophical theories have coexisted since time immemorial:

·         Monism: Everything we can perceive, including consciousness, can be explained in terms of a single component: matter, in the broadest sense of the term, which also includes energy. In turn, monism can be classified into two different theories:

o   Reductionist Monism: It asserts that the entire functioning of the universe has a bottom-up explanation. In other words, if we knew enough about elementary particles and their properties, we could explain everything, including self-consciousness.

o   Emergentist Monism: It asserts that the lower level does not explain everything that happens at the higher level, since there are properties (including self-awareness) that only have a top-down explanation. That is to say, complex systems can have a behavior unpredictable in the bottom-up direction.

Downloading consciousness

If we could download our consciousness in a computer or a robot, we could go on living indefinitely inside the hardware and thus achieve immortality. This is what some futurists and supporters of transhumanism hold. But is there any chance that this will come true?

If this were possible, we could also keep backup copies. Thus, in the event of an accident, the dead person could be retrieved and put back into operation with minimal memory loss. As usual, science fiction arrived there first, as in Cory Doctorow's novel Down and out in the Magic Kingdom.

Will we be able to build conscious beings?

I use the term conscious beings, because the term conscious machines has materialistic connotations that I do not share, while artificial intelligence has been burned and abused by generalist media.

Before trying to answer this question, I want to make a few previous clarifications:

1. We are now capable of building conscious beings: our children. Four billion years of evolution have led to the appearance of a type of beings (us) endowed with self-awareness and capable of reproducing. This was a natural process, which we have not designed ourselves, but has been given to us since before we existed. However, when someone poses the question in the title of this post, it is usually interpreted thus: will we be able to build artificial conscious beings, by means other than natural, devised and developed exclusively by ourselves?

Illusion or ignorance?

Every civilization is blind to some things, while others are seen more clearly. This has the consequence that there are problems that a civilization strives to solve, although it is possible to show that they have no solution. This happened, for example, to the Greco-Roman civilization with the problem of squaring the circle with ruler and compass. It fell to the next civilization (ours) to show that it cannot be solved.

On the other hand, we have an evident tendency to deny the existence of what we don’t understand. This is happening to our civilization with two concepts with which we’ve got stuck, that we insist on explaining (away), but don’t have an obvious solution: the flow of time and human self-consciousness. In both cases, many thinkers of the last two centuries have said that both concepts are illusions; that they don’t really exist. Let’s look at it in more detail:

The phenomenon of man

Pierre Teilhard de Chardin

We know from experience that man has a mind and consciousness. It is also evident that animals seem to have more mental activities the closer they are to us. Thus, mammals have more minds that reptiles, reptiles more than fish, fish more than invertebrates (possibly excluding cephalopods). All animals except sponges have a nervous system, although some have very little: the nematode Caenorhabditis elegans has only 300 neurons. Plants do not have a nervous system, but they have some sensitivity and are able to move slowly. And when Antonie van Leeuwenhoek discovered microorganisms in the seventeenth century, no one doubted that these tiny creatures were alive. True, biologists have not yet agreed on whether viruses, even more tiny beings, are alive or not. I have written about this in another post in this blog.