The universe is made out of feedback. I mean that quite literally. Feedback is all there is, and everything there is, is feedback.
I’m a cyberneticist, which is the most profound subject in the world, and also the stupidest. Cybernetics is about literally everything, and yet we have virtually nothing to say about it. There is only one kind of feedback for us to know about, and in principle it’s ridiculously easy to understand. Although, like numbers, it does come in two flavors – positive and negative – and multiple feedback loops can combine. That’s where it gets interesting.
Positive feedback is when a change exacerbates itself. Wealth is an example of positive feedback: Beyond a certain point, the more money you have, the easier it becomes to make more money, and therefore the more money you’ll have. Rinse and repeat. Left to its own devices (e.g. without progressive taxation, or ultimately a revolution), this process will accelerate, and all of the money in the world would end up in one person’s pocket. We’re not all that far from this point now. The other side of that exact same coin, is poverty. The less money you have, the harder it is to make money at all, and without help, beyond a certain point, people just get poorer and poorer.
Negative feedback, on the other hand, is when a change tends to undo itself. If we get too cold, we find ourselves putting on more clothes, and we warm up again. If we get too hot, we take them off again. If a restaurant starts to get too noisy, eventually nobody can hear each other speak, and so, unless that restaurant is in San Francisco, things tend to quieten back down again.
Of course, nothing is ever that simple, which is kind of the point. Every feedback loop exists in the context of many others; some positive and some negative. Positive feedback loops are racing towards oblivion, while negative feedback loops are trying to hold them back. They often act like switches, so that positive feedback can hold sway up to a certain point, and then negative feedback will kick in to stop it. Occasionally vice-versa. The balance of power changes all the time. If it wasn’t like this, the universe wouldn’t be a universe. And life wouldn’t exist.
There’s a lot of feedback about. Really. A LOT. We can see something like a million, million galaxies. On average, each of those galaxies contains something like a million, million stars. Every star, along with the planets around it, contains an incomprehensible amount of matter, and every single teaspoon of that matter contains something like a million, million, million, million atoms. Each of those atoms is a tiny swirl of cause and effect that feeds back on itself in a way that means it never stops swirling, and the atoms all interact with their neighbors, creating reality.
And that’s just the ‘space’ part of spacetime. This dance has been going on for tens of millions of centuries, and who knows how many times the process has reset itself and started again. Perhaps just the once, but perhaps an infinite number.
Somewhere, in a tiny, tiny, totally insignificant corner of this incredible maelstrom, are you and me. In the scheme of things, we are utterly irrelevant. All of human history could be blown away by a random asteroid and our closest neighbors wouldn’t even notice.
But that’s from a cosmic perspective. From our own personal perspective, we and our fellow life forms on this little green planet, here in the tenth millennium or so since the end of the latest glaciation, really matter. We are the actors in our own little play, but also the audience. We care about how that play turns out. And why shouldn’t we? To us, the local feedback loops of cause and effect, including the machinations of our fellows, are really important. Every life deserves saving; every death deserves mourning; every wrong deserves righting.
I say all this, partly because you need to understand where I’m coming from. Feedback is going to crop up a lot, and especially the feedback that creates lives and minds. But also, I’m writing this at 5am, unable to sleep, just a couple of days before the 2024 American election. By the time you read this, it may be over.
In psychosocial terms, there is some really interesting but somewhat alarming feedback going on around here, and it meshes with a lot of big things going on elsewhere. We live in very interesting times. Malcom Gladwell might call it a tipping point.
Much of this feedback is called politics, and I guess it’s impolite to talk about politics, so I won’t. That’s for you to make up your own mind about, even if you kill us all. But which way will things end up tipping?
I have no idea – that’s how the future works. Well, I do have some predictions, because dynamics is my thing, but they’re probably as unreliable as anybody else’s, in the present dynamical context. We will see, I guess.
Nevertheless, we have got ourselves in a right mess, haven’t we? Somehow, bizarrely, someone with a severe personality disorder, who by rights should be receiving compassionate professional help in a facility somewhere, is actually a viable contender for president. Never mind the politics that this person and those around him claim (and I do mean claim) to believe in, the personality disorder itself is a clear and distressingly predictable thing, to anyone who understands what they’re looking at. George Orwell, for one, had a pretty good handle on that sort of personality. And yet Trump may actually win. He (kind of) won before, and a lot of people, both inside and outside this country, are determinedly trying to help him do it. Even if he loses, a lot of those people will still be here, angrily wishing he’d won. At least for a while, until the general milieu adjusts.
And this, not the slightest bit coincidentally, is happening right as we reach a global tipping point with regard to our climate. Again, I’m not here to argue with you about that, although I don’t imagine there would be much argument among ourselves. What I’m concerned with is the feedback.
All feedback loops have what I call a null point. Negative loops tend to return the system towards that null point, while positive feedback loops drive the system away from it. In positive feedback, the null point creates a watershed. A tiny difference in the starting point can lead to massive consequences (this, of course, is the foundation of chaos theory, of which cybernetics is a close cousin).
Forgive the imagery, but I remember once urgently going to the bathroom outdoors, at a place on the U.S. Continental Divide. If I had faced in one direction, my pee would theoretically have flowed into the Atlantic, whereas if I’d pointed in a slightly different direction, it would have flowed into the Pacific. But which direction was which? Tiny undulations in the landscape might have made a big difference.
Which direction is which, now??? We are standing on a watershed – a tipping point. None of us has much say about which way it tips, and yet, collectively, we are the whole reason it will tip one way rather than the other. I guess if there’s any kind of practical point I’m trying to make, it’s this: If you are a U.S. citizen (I’m not), and you haven’t yet voted, for heaven’s sake, make sure you do! Your vote might be the one that makes the difference. And not voting is itself a vote. You should at least let yourself feel that you weren’t the one who let the side down. Although I guess I’ve probably left it a bit late to mention this…
But in terms of the bigger picture, I don’t know much about anything, really, but I do have a very good grasp of dynamics, and I think things are actually beginning to right themselves. It might get bumpy for a while, though, and things which are just bumps for those of us who survive them can be the end of everything for those who don’t. Nevertheless, speaking on the timescale of history and despite being a pessimist by nature, I feel fairly optimistic about the way things are likely to go, as long as we all try not to step off the cliff.
I just wish with all my heart that people understood more about feedback; especially things like oscillation and thrashing. But they don’t. Nobody teaches it in school. On the whole, people just run around randomly, like headless chickens. Although, to be fair, sometimes randomness can be a powerful dampening or even centering force – a close cousin of negative feedback. Better chickens than lemmings, I suppose…
About the us politics, seeing this out of a distant land, I ask myself how you ended up with those 3 candidates (Joe, Harry, Trumpy) you had for president
…but then I look at the current politicians we have here in power and shut up again…
Also about the insignificance we might be in the universe, this is only true if we never leave our solar system.
If we manage to colonise a second planet, we are half way there to colonising this compleate galaxy. And from there the we are half way there to colonise other galaxys. Exponential growth is amazing.
And your game could play a hughe role in this leap for mankind, your previous game was a niche game, jet it inspirated many people to become scientists in different areas.
This game got the chance to blow up and become viral. As well as becoming the missing piece we need for a sentient super intelligence.
We don’t know what kind of feedback this game will cause, but we know it will cause a significant feedback! Maybe even an extending feedback loop, if it inspires children to improve on it once they are adults.
Your terrible political takes are the reason I stopped following you on Twitter. Please keep that shit there.
Anyone knows any good islands out there? Poor or no Internet connectivity preferred.
Congrats everyone! Now instead of having World War 3 starting 6 months from now, it’ll be starting in 9 months! And the price of everything with increase a bit more gradually than it otherwise would have!
One of the most striking stats from exit polls IMO is that 2/3 of voters think that the economy is in a poor shape.
I see this as a clear case of alternative facts. In reality, the US economic growth, unemployment and inflation rates are the envy of the developed world right now. But people keep being told by certain media, influencers and Trump that the economy is bad. As far as I can tell, these lies and misrepresentations are very intentional. To be fair to many Trump voters, it is hard to make a rational decision when starting from incorrect facts about reality.
What a crappy day! I blocked a few of you this morning, because things seemed to be getting out of hand and I was fighting a bunch of other fires at the same time, but I’ve un-blocked all but one. Sorry.
I should never have mentioned anything even a little bit connected with politics, because everyone is so frantically worked up about it right now. But I only mentioned it because we were in a dynamically really scary situation. As it turns out, things didn’t go well, and so now we’re in a far worse situation, REGARDLESS of what people think about the candidates involved. We’re in deep shit, basically. Worldwide. I can see all sorts of bad scenarios on the horizon, especially when you add Ukraine, Russia and the Middle East into the equation. And I stand by my opinion that Donald Trump has a real serious mental health issue that’s going to have semi-predictable consequences for all of that – it’s not just my distaste for him as a person or even his politics.
I was born about 13 years after WWII ended, and so I didn’t have to live through it myself, but my parents and grandparents did and I learned a lot from them, because it was still very fresh in their minds. All I did was play in bomb craters and clomp around in my grandad’s army boots. Meanwhile, most of you didn’t live very close to that period, so you may not have much feel for what it was like. What ideas, feelings and attitudes were in the air. I wanted to try and tell you about some of it, but honestly there’s nothing any of us can do about it now. What’s done is done.
It does help to stay keenly aware of the wider dynamical situation, though, and the ways in which things can loop back on themselves to behave in unexpected and sometimes dramatic ways. People don’t always behave the way they do for the reasons they think they’re doing it. Nor do they always act in their own best interests, especially when they’re frightened or angry (even if they don’t know that’s what they’re feeling). And it’s even worse when they’ve been lied to continuously. We’re in the middle of a real information war that was designed to drive us apart, and that’s exactly what it has done. But anyway, it’s all moot now. The US election turned out the way it did, and it will be ‘interesting’ to see what the ramifications are, I guess.
Meanwhile, I’ll try to keep my interest in feedback restricted to biology.
In the years since I first supported this project, AI has developed into a viable tool. I recently started using Perplexity.AI to search the net. When I was reading your post about feedback it reminded me of something I had read about a recent theory of mind, but I couldn’t remember where I had read it. So I asked Perplexity: “I’m looking for an article I read about a theory of the mind where the brain is considered a prediction engine”.
Here is the reply I got (which wasn’t a link to the article I had read, but is still a very concise summary of the subject):
Based on your query, you’re likely referring to the “Predictive Processing” or “Predictive Coding” theory of the brain and mind. This theory has gained significant attention in cognitive neuroscience and philosophy of mind in recent years. Here’s a detailed overview of this concept:
## Predictive Processing: The Brain as a Prediction Engine
Predictive Processing (PP) is a framework that casts the brain as a sophisticated prediction machine. This theory suggests that the brain continually generates predictions about the causal structure of the world, using these predictions to construct our perception of reality from the top down[1][2].
### Key Principles
1. **Constant Prediction**: The brain is constantly making predictions about what it expects to encounter, even before sensory input is received[4].
2. **Hierarchical Processing**: Predictions are generated at multiple levels of the brain’s hierarchy, from low-level sensory processing to high-level cognitive functions[1].
3. **Error Minimization**: The brain aims to minimize the difference between its predictions and actual sensory input, known as prediction errors[1][2].
4. **Bidirectional Information Flow**: Information flows both “top-down” (predictions) and “bottom-up” (sensory input and prediction errors)[1].
### Applications Across Cognitive Domains
The PP framework has been applied to explain various cognitive processes:
1. **Perception**: Instead of passively receiving sensory information, perception is seen as an active process of prediction and error correction[1][4].
2. **Action**: Motor control is viewed as the fulfillment of sensory predictions through movement[2].
3. **Attention**: Attention is directed towards stimuli that generate significant prediction errors[5].
4. **Emotion**: Emotional states are interpreted as predictions about bodily states and their causes[2].
5. **Social Cognition**: Theory of mind and social interactions are understood through the lens of predicting others’ behaviors and mental states[3].
## Implications and Significance
1. **Unified Theory**: PP is considered by some as a potential “grand unifying theory” of brain function, offering a common computational principle across various cognitive domains[4].
2. **Consciousness**: Some researchers propose that predictive processing might be key to understanding consciousness, suggesting that our conscious experience emerges from the brain’s predictive models[7].
3. **Embodied Cognition**: PP aligns well with theories of embodied and extended cognition, emphasizing the brain’s deep interconnection with the body and environment[2].
4. **Clinical Applications**: This framework offers new perspectives on mental health conditions, potentially informing novel therapeutic approaches[2].
## Neural Basis
Neuroimaging studies have identified brain regions involved in predictive processing:
– The anterior lateral prefrontal cortex (alPFC) plays a crucial role in estimating future chances of success in decision-making tasks[5].
– The “mentalizing network,” including regions like the superior temporal sulcus (STS), temporo-parietal junction (TPJ), and medial prefrontal cortex (MPFC), shows activity patterns consistent with predictive coding in social cognition tasks[3].
## Future Directions
Researchers are exploring several avenues to further develop and test the predictive processing framework:
1. **Experimental Paradigms**: Developing new experimental designs to directly test predictions of the PP model[3].
2. **Computational Modeling**: Creating more sophisticated computational models to simulate predictive processing in the brain[1].
3. **Developmental Studies**: Investigating how predictive processing capabilities develop from infancy through adulthood[3].
4. **Clinical Applications**: Exploring how disruptions in predictive processing might contribute to various mental health conditions and how this understanding could inform new treatments[2].
In conclusion, the Predictive Processing theory offers a compelling framework for understanding brain function, potentially unifying our understanding of perception, cognition, and action under a single computational principle. As research in this area continues to evolve, it promises to provide deeper insights into the nature of the mind and consciousness.
Sources
[1] Prediction, cognition and the brain – Frontiers https://www.frontiersin.org/journals/human-neuroscience/articles/10.3389/fnhum.2010.00025/full
[2] Wilding the predictive brain – PubMed https://pubmed.ncbi.nlm.nih.gov/32902122/
[3] Theory of Mind: A Neural Prediction Problem – PMC – PubMed Central https://pmc.ncbi.nlm.nih.gov/articles/PMC4041537/
[4] Predictive Processing: The Grand Unifying Theory of the Brain https://www.mindbrained.org/2020/10/predictive-processing-the-grand-unifying-theory-of-the-brain/
[5] The brain is a prediction machine: It knows how well we are doing … https://www.psy.ox.ac.uk/news/the-brain-is-a-prediction-machine-it-knows-how-good-we-are-doing-something-before-we-even-try
[6] How and where: Theory-of-mind in the brain – ScienceDirect https://www.sciencedirect.com/science/article/pii/S1878929314000048
[7] The Brain as a Prediction Machine: The Key to Consciousness? https://www.psychologytoday.com/us/blog/finding-purpose/202201/the-brain-prediction-machine-the-key-consciousness
Of course, Trump and many of his followers and their views are questionable to some extent. But you also have to consider that the opposing party is good at finding nice words, though not much good comes out of it in the end. For example, what’s good about illegal immigrants being unregistered, living in fear of taking a job, and being pushed further into illegality? Instead, money would need to be invested to integrate these people legally—and that would mean everyone who comes. This is just one example to show that problems cannot be solved by nice words alone, as the opposing side often tries to do.
Just my 2 cents in a nutshell.
I think social systems often bear a strong resemblance to certain neural networks. You need the thesis and the antithesis; it requires experimenting to see what works and what doesn’t, even if we’d naturally prefer it to be otherwise.
oh. politics. :/