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Showing posts with label philosophy. Show all posts
Showing posts with label philosophy. Show all posts

29 October 2018

Mapping Legacy Epistemic Terms onto a Modern Ontology of Mind

This post started life as a comment on a blogpost on SelfAwarePatterns.

On the distinctions between thoughts, emotions, and feelings, I recall Cordelia Fine having an equation in one of her early popular books:

emotion = arousal + emotional thoughts

Trying to map archaic epistemic terms onto modern ontologies is difficult. Partly because we often don't acknowledge the different modes and levels we are working with.

Pre-modern India had no separate category for "emotion" or "feeling". Sanskrit has names for emotions and often several synonyms or fine distinctions in intensity, but emotions were lumped together with thoughts as "mental" (cetasika) whereas sensations were "physical" (kāyasika). So our European way of dividing up experience is not "natural".

So it just occurs to me that we could think more systematically about this.

The ontological distinctions are whether the stimulus comes from the peripheral nervous system or it originates in the central nervous system; and whether it is accompanied by physiological arousal or not (i.e., whether it also involves the autonomic nervous system).

This gives us
central - arousal
central + arousal
peripheral - arousal
peripheral + arousal
If you want to map the archaic Eurocentric epistemological terms onto this, then I suggest: thought, emotion, sensation, feeling. i.e.
central - arousal ≈ thought
central + arousal ≈ emotion
peripheral - arousal ≈ sensation
peripheral + arousal ≈ feeling
I haven't factored in the parasympathetic side of the autonomic system, i.e., ± relaxation. I suspect we don't see these as separate categories, but as positive experiences fitting into categories, i.e., peaceful thoughts, calm emotions, neutral sensations, contented feelings.

The next step would be an axis for anticipation/reward. But this would include anticipation of positive (↑) and anticipation of negative (↓), since these move us in different directions. Also, there are different reactions if the reward meets or confounds expectations.

The combination would give us a coarse-grained model that would allow us to map most of the archaic legacy epistemic terms onto a modern empirical ontology. So the new equation is:

experience ≈ central/peripheral ± arousal/relaxation ± anticipation/reward

So in this model, happiness, for example, is a centrally initiated experience, accompanied by physiological arousal, and the anticipation of a good outcome that has been rewarded with a good outcome. 

Pain, is peripherally initiated by pain nerves accompanied by physiological arousal and the anticipation of a bad outcome; but it may also become the object for centrally initiated experience accompanied by arousal. With slight pain or discomfort we may anticipate getting better and thus remain relatively calm about it. With intense pain we may anticipate death and this may spin off more centrally initiated experiences.

The idea that a physical experience can spin off many mental experiences is called prapañca in Buddhist Sanskrit. One of the supposed benefits of awakening is that uncontrolled prapañca stops. 


05 September 2017

Rationality

In the new definition of reasoning, what reasoning is, is the process of finding reasons (justifications, rationalisations etc) for decisions made and/or actions taken. First comes the decision, then the reasons. It's always this way around for us, and unless someone enquires, we may not even have reasons for things we do, think or say. Unconscious processes guide all of our actions, but we are equipped to explain them to others if required. But we do this in a post hoc manner: reasons come after the fact and on demand.

Unfortunately, humans have biases in this department. For example, we stop searching when we find any plausible reason, we don't keep searching for the best reason. Unless we are arguing with someone who shoots down our reasoning. Reasoning is a group activity and solo humans don't do it very well.

When we don't have strong intuitions about a decision, it still better to go with our gut. When we stop to reason about a decision it drives us towards decisions that are easier to justify. But in the long run, such reasoned decisions turn out to be less satisfying.

One of the reasons we do this is to appear rational to our peers. This is a very important for humans. We are social and in the modern world appearing to be rational is an important aspect of group membership. Rational is defined locally, however. What is rational for the girl guides, is not rational for the Tory Party or the Hell's Angels or my family.

Rationality is being able to offer reasons for actions and decisions that one's peer group accept as being rational.

Sometimes when trying to fit into our social group we make decisions that seem less than rational to an outsider. "Would you jump off a cliff if they told you to?" Anyone who has heard this in earnest will know what I mean. As if happens my paralysing fear of falling kept me from jumping off cliffs, but it was a situation I faced in real life and yes, had I not been phobic, I would have jumped. I wanted nothing more than to jump off that cliff and be one of the gang. I did other brave things. Just don't ask me a jump of a curb, let alone a cliff. Although I was always fascinated by space, I knew at a very young age that I did not want to be an astronaut for this very reason.

An outsider may see this as irrational. But as human beings, it may be more rational for us to do some mildly irrational things that assure us of group membership because group membership is a long term survival mechanism. We evolved to live in groups.

While making irrational decisions may be suboptimal, losing my social status, let alone being ostracized, is a catastrophe. So there is a delicate balance that we all know. We allow ourselves to be pressured into conforming because instinct tells us that acceptance is more important than rationality. And this is true.

Or it was true 12,000 years ago in our ancestral environment. In that milieu, living as hunter-gatherers, satisfying the expectations of our peers, was probably a good rule of thumb for life. More so when we consider that our "peers" included the older more experienced members of the tribe.

So yes, people succumb to peer pressure. They behave in atrocious ways. But at the time, in their milieu, it may have been the rational thing to do, no matter how ugly it seems to us now. Until you're in the situation, you don't know how you'll react. This is why surveying someone's opinion of how they would react is meaningless. What we do in crucial situations cannot be predicted, especially by ourselves. Asking people about the trolley problem (where you can rescue 5 people by killing 1) for example is meaningless. No one knows what they would do in that situation.

All we can do is imagine that we have done something and how easily we can justify it. If we are further asked to explain ourselves, it will often change our answer, since we have to say the reasons out loud and watch the reactions of the person asking the questions. We get a better idea of how the justifications sound and we chose the best justification, which tells us what action we might do in that situation. I'd be willing to bet that there is no long term relationship between what we say we might do in these extreme hypothetical situations and what we actually do when it comes down to it. Although in more realistic scenarios that we actually have experience of, we can turn to that experience to guide us.

So rationality is not what we were taught. It is not what philosophers have classically defined it to be. Most solo humans are poor at reasoning and only reason well when arguing against someone else's proposed proposition. Reasoning certainly uses inference to produce reasons, but it does not help us find truth or make better decisions. It may help us convince people that the decision we have already made is the only decision they could have made, or the best one, or it may help us describe why someone else's decision is the worst one.

The problem with the classical view of rationality and reasoning is that it is completely at odds with the empirical evidence. It is a fiction maintained in spite of the evidence. The classical view of rationality and reasoning is so far past its use-by date that it approaches being intellectual fraud or hoax. What is actually happening is a lot less grandiose, a lot more banal, but it is what it is. We are what we are. Living a fantasy is the epitome of irrationality.



01 September 2017

Theseus's Boat and Grandfather's Axe.

My writing in the last couple of days has been exploring the ancient philosophical problem known as The Ship of Theseus, which you might know as grandfather's axe - when granddad says it's his favourite axe; and that he has replaced the head 3 times and the handle twice. The question philosophers usually as is, "Is it really the same axe?"

Unpacking this problem and establishing useful ways of thinking about it has been very enjoyable.

My way into the problem was to notice that no matter whether we think it is the same axe or a different axe, we never doubt that it is an axe. Because the parts are generic we can replace them at will without changing the intrinsic properties of the object. Any correctly assembled combination of axe-head and axe-handle makes up an axe. Change of a part does not affect the identity of the complex object as a whole.

So, at least at this level, the object has identity and continuity as an axe. It is an axe and we know it is an axe. These are objective facts. The first is an objective fact about what is (ontically objective), the second is an objective fact about what we know (epistemically objective). The object either has the relevant properties or it does not. The fact that it is an axe is dependent on the observer knowing what an axe is. But any observer who knows what an axe is (no matter what they call it) will correctly identify it as an axe.

But is this grandfather's axe? Ownership depends entirely on the minds of grandfather and his community. He asserts "this is my axe" and the community either ascent or they don't. So ownership is some kind of subjective fact. In which case, there is no one right answer. Some might feel that property is theft, in which case grandfather's assertion carries no weight. Or grandfather might have become confused with another similar axe.

Maybe it's not so much a matter of ownership, but of close association. In which case this is also a subjective fact. Recognition is a matter of seeing the object and having a feeling about it. In the bizarre neurological disorder, Capgras Syndrome, people visually recognise their loved ones (usually, but it might also include pets or familiar objects like one's home), but the identification does not set off an emotional reaction. The spouse looks exactly right but feels wrong. The person with Capgras is usually at a loss to explain this. And the explanation that they have suffered brain damage doesn't help much. They often confabulate stories - the spouse has been replaced by a duplicate or doppelganger for nefarious purposes. Again there is no right answer. If grandfather feels that this is his axe, then that is what he feels. That we do not feel it only tells us that we are not grandfather (which we already knew).

Objective facts are independent of observers. Metal is hard, it can be shaped into a cutting edge. Wood is firm but flexible and can be shaped into a handle. None of these statements depends on an observer or what they believe. Subjective facts are not always shared. They do depend on the observer. Money, for example, is based on us all agreeing that bits of paper or plastic represent units of wealth. A £5 note is intrinsically almost worthless. But £5 of wealth is enough to redeem for a cup of coffee and a slice of cake (outside of London). If we stop agreeing to those special bits of paper or plastic are valid tokens, then the system breaks down. This is what happens when there is hyper-inflation for example.

The Athenians maintained a boat that at one point in its history carried Theseus and his companions to Minos, where he overthrew the Minotaur, and then it ferried him back to Athens. Theseus went on to become a great general/admiral. So for Athenians the boat is a symbol of a national hero; of  someone they feel epitomises their national character. For the Athenians it is definitely Theseus's boat. If we don't know who Theseus was, or his story, or anything much about ancient Athens, then we may not feel any connection with the symbol. We may conclude that it is not Theseus's boat. But even if we had lived at the time, what we believed would probably not have changed the minds of the Athenians.

If they had been celebrating a goat as the boat of Theseus, then we could have made an objective argument that a goat and a boat are not the same. A goat might be Theseus's goat, but it cannot be Theseus's boat. But because it was a boat, and remained a boat despite repairs, we can only make subjective arguments. And, frankly, why should the Athenians care what we think about their hero and his boat?

And of course it gets much more interesting when we get to the fact that the boat or the axe is a metaphor for ourselves.

22 November 2016

Life After Death and All That.

What is life?

Life is a collection chemical reactions in an energy gradient across a membrane. Fundamentally, what drives life is the reduction of CO₂ by hydrogen. This results in the production of complex carbon compounds, which I call macro-molecules. Life as we know it involves four main kinds of macro-molecules: proteins, nucleic acids, lipids, and organo-metallic complexes. We are ~90% water, and ~9.9% macro-molecules and ~0.1% salt of various kinds. Some of the macro-molecules, particularly the nucleic acids, have the ability to self-replicate. Self-replicating molecules function as structural elements, catalysts, or as templates for the production of the first two.

The original energy gradient was probably hydrogen and methane gas bubbling up from warm alkaline undersea vents into cold acidic, CO₂- and iron-rich sea water; through porous structures made of precipitated calcium-carbonate. Nowadays the most important energy gradient is provided by sunlight falling on the surface of the earth.

The dominant form of life is bacterial (taking in the Kingdoms of Bacteria and Archaea). It has been for at least 3.5 billion years and probably nothing will change that. Eukaryotes (all other forms of life) are certainly everywhere, and multi-cellular eukaryotes certainly make a lot of fuss, but bacterial life is more numerous, more diverse in form and genetic variation, adapted to a greater range of ecological niches, and greater in biomass.  Furthermore, all other forms of life rely on bacterial symbionts to survive: from mitochondria and chloroplasts within animal and plant cells, to our gut microbiome. Without our bacteria symbionts, we'd be dead. And the next most dominant form of life are fungi. 99% of life on earth is bacterial or fungal. And 99% of eukaryote life is plants. 99% of animal life is invertebrate. 99% of vertebrates are fish. Whatever led humans to consider themselves the dominant life-form on the planet?

Life is intrinsically interesting because it is exceeding complex and self-sustaining. Life modifies the environment to make it more suitable for life, consuming resources and converting them into waste products, which in turn become resources for some other form of life. Life shifts the environment far from its natural (or chemical) equilibrium. Life is all interrelated and interactive. Everything relies on everything else.

In this age of individualism, winner takes all, and survival of the greediest, the fundamental themes of life—interconnectedness, communities, cooperation, symbiosis, ecological networks, recycling, equilibrium (or homoeostasis)—give us an alternative starting point for thinking about how we understand the world, our place it in, and how we ought to live. In the long term, our birth and death are simply short cycles of resources being used to create structures and then being returned to the pool for reuse. Ideally how we live will be conducive to life generally, but life is incredibly adaptive and it won't matter how we live in the long run: life will adapt. And when we die, our molecules and elements will be recycled just the same. We are waves in a field of resources; rising, falling, rising.

But what we mean by "life", in the context of life after death, is usually tangled up with notions of conscious life. When we talk about "life after death" we don't mean life per se. We don't mean the chemical reactions. We mean life in the sense our conscious existence. What we seek in talking about life after death is continuity of our inner lives. Life after death plays on the ambiguity of the word "life". To be more accurate we ought to say "consciousness after death", rather than "life after death".


Consciousness After Death

On one hand life does continue after death. Our bodies become food for a host of bacteria and fungi which recycle everything we are made of and return it to the environment to be used by other forms of life. Nothing is wasted in life. Indeed some people have observed that most of the molecules that make up our bodies all came from other living things originally. Even the air we breath is recycled. 99% of the oxygen in the atmosphere is excreted by plants and algae.

But this doesn't solve the problem of our attachment to our mental survival. Most people don't care about physically coming back after death, though zombies are a very popular meme at present. Most people accept that their bodies won't last, but want their memories, their personality, and their opinions to survive.

This way of thinking is only possible because we routinely divide the world into two: physical and mental. It is true that we know about the world in two main different ways, that for convenience we may label "physical" and "mental". But to generalise from this that there are two corresponding modes of being is a leap of faith. And it's not one that is supported by our systematic investigation of the nature of the world. Everything points to one mode of being, of which there are various manifestations and we which experience in a variety of ways because of the windows we have on the world, i.e. our senses.

The idea of a dual mode of being continues to appeal for a variety of reasons. Since our knowing seems to come in two varieties, the idea that the world is literally divided in this way seems plausible. There are a number of experiences, including dreams, sleep paralysis, out of body experiences, and so on that make a non-material mind seem highly plausible and almost certain to exist. We are predisposed to confirmation of our opinions and tend to stop seeking explanations once we have one that is even vaguely plausible. So dualism is the norm. It is wrong, but the reasons for this are subtle, complicated, and counter-intuitive. So it's hard to convince most people on this score.

Also we see the dissolution of bodies at death. The sights and smells of putrefaction elicit disgust because the by-products of this process are poisonous to us. Disgust protects us from eating poison. The naive view, however, sees the putrefaction of the body and rebels from the idea that the mind goes the same way. We deeply desire for our inner lives to continue. And the certain knowledge of death creates a cognitive dissonance.

So humans mostly create this split in their minds. They divide the world into physical and mental; or into matter and spirit. Each has strong associations and metaphorical entailments with the two modes of being. Physical is cold, hard, heavy, unresponsive, lifeless, typified by rock and by putrefaction. Mental is warm, soft, weightless, responsive, living, typified by light and renewal. Metaphorically spatial metaphors are important: we are standing, upright, and up when alive and well; prostrate, flat, down when asleep, ill, or dead. Physical is down; mental is up. Punishment is bad, hence down; hence Hell is the underworld. Reward is good, hence up; hence heaven is up. Matter is corrupt; spirit is pure. Matter is temporal; spirit is eternal. And so on. There is a net work of entailments and associations that make up a self-consistent worldview. It's just inconsistent with reality.


Dualism is False

Dualism is intuitive and its consequences are desirable. It implies that we can escape the fate of our bodies, escape putrefaction. We can in short survive death and live forever. Hallelujah. On its own this is too simple. But we are social animals, hierarchical, and moral. We are also biased towards perceiving things as conscious: animism is the most widespread belief there is. According to one survey I read, 100% of modern hunter-gatherers are animists, while only 80% also believe in an afterlife. If life really resides in the spirit side of things, the disembodied living things become plausible, and our bias towards seeing consciousness in the world reinforces this. So most pre-modern humans live in a double world: a world of matter, with beings made of matter but enlivened by spirit; and a world of pure spirit. Special people, shamans, can bridge the gap and communicate between worlds. In civilisation shamans become priests.

As intuitive and plausible as it seems, dualism is false. The two ways of knowing create the illusion of two kinds of world, but in reality they are two kinds of window on one world. All the reliable evidence we have about the world points to this conclusion. There is in fact no distinction between mental and physical being. We live in one world, at most. So none of the stories we tell that are based on duality are true: God, ghosts, spirits, the afterlife, ESP, rebirth, karma, etc. None of it is true. This is a tragedy. A wrench. A blow. A crisis. A source of cognitive dissonance. Most people will not accept this argument because it conflicts too much with what they think they know.

Even atheists often accept this intuitive dualism. Scientists tacitly accept the dual nature of the world even though they argue that only the material is real. You cannot have an argument over which are real (or more real)—mental phenomena or physical phenomena—unless you first accept that the distinction is valid. If like me, you reject this distinction, then the scientific materialism argument starts to look as suspicious as any religious argument.

Unfortunately, this insight into the true nature of the world, the one world, means that the life after death that we crave is not possible. This is because what we think of as mental is not separate from what we think of as physical. To put it another way, the part of the world that we view through the window we label "mental", is not different from the part of the world that we view through the window we label "physical".

A dramatic demonstration of the oneness of the world and the relation between mind and matter can be found in the aetiology of Alzheimer's Disease. In this disease, protein plaques form that disrupt the connections between neurons and eventual kill them, especially in the hippocampus where memories are made and stored. As the connections in the brain as disrupted the person progressively loses their ability to function in the world. New memories stop forming, then older memories are lost. One gradually loses the ability to recognise people, places, and things. One's sense of identity, which is based on memory, is degraded and gradually lost. Sufferers have increasing problems with reasoning, concentration, and orientation. Changes in personality such as aggressiveness may appear. Eventually a person with Alzheimer's loses the ability to do basic functions like eating, and they die.

The progressive destruction of the brain destroys everything about a person that makes them unique and special; it destroys everything it makes them a person. It destroys their inner life, their personality and their opinions. And it does all this before it kills them. Presuming they survive long enough for the disease to progress that far, the person is gone long before the body finally stops metabolising. A more tragic end for a person is difficult to imagine. If one believed in a God, one would be tempted to conclude that a God who included Alzheimer's in their creation was incorrigibly cruel.

Dualism would predict that a disease like Alzheimer's would have no significant effect on the mind, because the mind is not dependent on the brain. Monism, the one world theory, predicts exactly what we see. Modified versions of dualism exist which try to offer workarounds for cases like this, such as the brain as radio antenna theory, but these fail to explain other aspects of mind functioning. Monism is the only worldview which correctly predicts the effects of Alzheimer's.


One World, One Life.
The hard truth is that we only live once and we live that life in one world. But the way we evolved makes us susceptible to all kinds of belief about life and the world that are not true. So weirdly, most of us live out a delusion. And many people are happy to exploit that susceptibility to delusion for their benefit. Some even sincerely believe that their delusion is a better delusion than your delusion. The thing about genuine delusions is that they are compelling. A genuinely deluded person has no conception that they are deluded. They understand themselves to be seeing things as they are. Given that delusion is the norm, it's better to assume a sceptical stance and assume that one is not seeing things as they are. There is always room for improvement.

I tend to state things as I see them, since it is only by doing this that one can be clear about what one thinks at any given moment. But I think one can see that my thinking evolves over time. I'm prepared to accept new information and to change my mind.

18 October 2016

Cybernetics Seminar

I went to a seminar at the uni today on cybernetics. Most of the participants seem to be speaking different versions of English - a kind of self-defeating vocabulary in which none of the questions seem to make sense to the invited guest (and didn't make sense to me). I wasn't very impressed. Smart people often seem to make things more difficult than they need to because otherwise they get bored.

The invited guest kept talking about an "ontology of unknowability" and unfortunately I didn't get the chance to point out that this was an oxymoron - knowability is the domain of epistemology. Ontologies tell us nothing about whether or not something is knowable. Which is why question about the knowledge of non-existent things causes such confusion - the ontological status of a phenomenon tells us nothing about it's knowability.

He also kept insisting that science was an ontology in which everything was knowable. But this hasn't been true since the 1920s when the quantum mechanics established problems like the Heisenberg Uncertainty Principle. The quantum universe clearly exists (ontology) but it is almost completely unknowable (epistemology). What we do know has radically changed human culture since it made electronics possible.

The take away was a pragmatic question which was opposed to the usual philosophical question. In ontology we ask what the world is like, but in pragmatics we might ask, "What does the world do?" I think this is an interesting question. One that takes us out of a purely cognitive approach to understanding the world and moves us into an experiential approach.

It's like we focus on what impact the world has on us, which leads to the question of how we respond to that impact, rather than worrying what to think about things.

The other take away is the cybernetics seems to be closely allied to behaviourism and game theory in it's distrust of minds and people. The aim seems to be to remove people from decision making processes and replace them with automatons that specifically do not employ knowledge based or cognitive approaches to problem solving. The human analogue is the physical reflex in which a pain stimulus in the limbs travels to the spinal chord where a response is initiated without involving the brain. And people do not seemed suited to this role.

I'm reminded also of that important component of NeoLiberalism, i.e. free-market economics, where the "market" is a blackbox that magically produces the optimum price for commodities (even though economists have known since the mid-1970s that the mathematics of supply and demand theory don't work - with more than one product or consumer the demand curve can be *any* shape and slope. There is no linear relationship between demand and price in any real world case.

24 September 2016

Revisiting Basic Philosophy

Twitter led me to an interesting blog post on Ribbon Farm, by Venkatesh Rao that is one of a series (see below). And in it I found what I think is a very useful way of looking at the ideas of ontology and epistemology.

He was basing his exposition of this idea on an article. "I got my definitions from this excellent 1993 paper, Choice Over Uncertainty and Ambiguity in Technical Problem Solving" (How to). The basic idea seems to be about asking the right questions.
But for everyday reading, it’s not actually that complicated. Do I know what am I looking at? is an ontological question. Can I do something with it? (such as “test for truth” or “use to poke Superman”) is an epistemological question. (The Cactus)

As Rao says, "I like to use the term ambiguity for unclear ontology and uncertainty for unclear epistemology." (How to). This is both excellent and great! Because we never have perfect knowledge of physical reality. So any ontology has a measure of ambiguity. And any epistemology has a measure of uncertainty.

On my big blog I have said "All our observations about the world have these three properties, i.e. accuracy, precision, and error". Every measurement of a physical property comes with built in error due to the nature of measurement. This is drilled into every student of science, but for some reason left out of every journalistic account of science and more or less every figure quoted by journalists - so there is some uncertainty in people's minds about science.

On the other hand, because of the nature of social reality, we can often state facts with a great deal more certainty. The £10 note in my wallet is definitely money. There is no uncertainty about this. The note itself is ontologically objective, it exists; but money is ontologically subjective. Many scientists and philosophers seem to think that money being ontologically subjective means that it is ontologically ambiguous. I disagree. There's sometimes uncertainty about money, how it works and what the value of it it, but these are epistemological issues.

When looking at a £10 note I know exactly what I'm looking at. And I know what I can do with it. This level of certainty is not available to physicists, except when they are dealing with money or some other ontologically subjective phenomena, such as consciousness.