One more attempt: what if collective decision-making is really a learning problem?
I have noticed that I have become unusually invested in this problem.
Partly because I believe I see a solution, and partly because I seem to keep failing to articulate what I see in a way that makes it possible for other people to see it too.
So I want to try one more time.
This time I will start from my own profession.
I work as an infectious disease modeller and epidemiologist in a national public health institute. Ultimately, my job is about reducing disease burden in populations.
Some of the interventions we work with are remarkably effective. Measles vaccination is one example. Measles is also one of the diseases for which global eradication is conceivable.
And eradication creates a peculiar decision problem.
If we eradicate measles, we don't merely reduce disease burden for the people alive today. We change the world inherited by every future generation. Eventually, vaccination against measles would no longer be necessary either.
The important point for my argument is not whether this future benefit can be assigned some particular expected value. It is that eradication changes the future decision problem itself.
To eradicate measles, we need a long sequence of connected decisions.
We need surveillance. We need models. We need vaccination. We need to observe what happens. We need to discover where our assumptions were wrong. We need to change the strategy. We need to coordinate with other countries. We need to learn from failures elsewhere.
The decision is therefore not really:
A or B?
It is a continuous process:
What do we currently believe? What should we do given that belief? What happened? What did we get wrong? What does this tell us about the world? What should we believe now? What should we do next?
This brings me back to the cluelessness problem.
We live in an evolving universe. Our models are necessarily incomplete, and the future is not simply unknown in the sense of being a hidden answer waiting to be calculated. The world itself changes.
So perhaps the central problem of decision-making is not how to make the correct decision from a fixed model.
Perhaps it is how to remain capable of correcting the model on which the next decision will depend.
And this introduces another layer.
We can learn about the problem.
But we can also learn about how we learn about the problem.
For example, better surveillance may produce better information. Better information may improve our model. A better model may lead to better decisions. The results of those decisions provide new information, which can improve the surveillance and modelling process again.
So there is a recursive possibility:
we don't only optimise the solution; we improve the process by which we discover what the solution should be.
That is the point I was trying to get at in my previous post.
But there is a second part of the problem that I had not made sufficiently explicit.
Measles eradication is not an individual decision problem.
No individual can eradicate measles.
No single institution can eradicate measles.
It requires collective action.
And now the problem becomes considerably harder.
We need a collective that can continuously adapt its understanding of a changing world.
But nobody possesses the complete model.
Different people see different things. Different institutions have different information. Different models will be wrong in different ways.
So perhaps the objective should not be to make everybody hold the same model.
Perhaps the objective is to maintain a network in which different imperfect models can continuously correct one another.
This changes what I think “alignment” means.
We cannot necessarily align people on every proposition about the world.
We cannot even guarantee that we will initially agree on the correct solution.
But perhaps we can align on the process by which we discover that we are wrong.
This is where I think something interesting happens.
The things required for this process sound, at first, like ordinary virtues:
Be honest.
Listen.
Be curious.
Say when you are uncertain.
Correct others when you believe they are wrong.
Allow yourself to be corrected.
Distinguish what you observed from what you inferred.
Help others understand information they do not have.
Forgive mistakes sufficiently that people remain willing to participate.
Remain connected even when you disagree.
But viewed from the perspective of a distributed learning system, these are not merely virtues.
They are functional properties of the system.
Honesty protects the fidelity of the information entering the network.
Listening determines whether information actually reaches another person's model.
Correction provides an error signal.
Curiosity drives exploration of uncertainty.
Forgiveness helps preserve the connections through which future information can travel.
And willingness to be corrected keeps the individual model open to updating.
The interesting thing is that this can become self-reinforcing.
Better relationships allow better information exchange.
Better information exchange allows better collective learning.
Better collective learning can increase trust in the relationships that made it possible.
And the reverse is also possible:
Fear produces concealment.
Concealment produces poorer information.
Poorer information produces worse models.
Worse models produce worse decisions.
Worse decisions produce distrust.
And distrust produces more fear and concealment.
So perhaps collective intelligence is not simply a property of how much information a group possesses.
Perhaps it is partly a property of whether the relationships between its members preserve the capacity for correction.
This also changes how I think about decentralisation.
If we don't know beforehand what the correct model of the future problem will be, we cannot simply distribute a correct solution from the centre.
Instead, we may need to distribute the capacity to learn.
Not agreement on the answer.
Agreement on the practices that allow answers to be challenged, revised and improved.
This is why I have started thinking about the “verbs of learning”.
Not what everyone should believe.
What everyone should be capable of doing.
Listening.
Questioning.
Explaining.
Correcting.
Updating.
Admitting uncertainty.
Seeking disconfirming information.
Supporting someone else's learning.
Being willing to change one's mind.
These behaviours do not automatically produce agreement. Nor do they guarantee that a collective will choose the right goal.
But they may create something more fundamental:
a collective that remains capable of discovering that it is wrong.
And perhaps that is the deeper problem I have been trying to describe.
Decision theory asks:
What should we do?
But under radical uncertainty, and especially when the decision is collective, perhaps we also need to ask:
How do we remain capable of discovering that what we are doing is wrong?
And if that capacity itself can be improved, then we arrive at a recursive problem:
We learn about the world.
We learn how to learn about the world.
And we learn together how to become better at learning together.
I suspect that this is not a new idea in the literature. Many pieces of it almost certainly exist in different disciplines.
But I increasingly suspect that putting these pieces together points toward something important:
The fundamental requirement for collective intelligence may not be agreement. It may be collective corrigibility.
Not a collective that is permanently right.
A collective that remains capable of becoming less wrong.
Defective how? Defective to what end? Perhaps we should omit this new finding, if the consequences of doing so are better?
And what consequences are those, that the impartial altruist recognizes as relevant?
I think this is exactly where my argument needs to be more precise. By “defective” I do not mean “expected to produce worse consequences.” If I meant that, then I would simply be making the EV argument again.
I mean defective as a model of reality.
Suppose I have a model M and I discover X. I come to believe that X is a real feature of the world and relevant to the domain I am trying to model. I then have two options:
It is perfectly possible that, for some particular goal, B produces better outcomes than A. I am not denying that. Indeed, that possibility is exactly why I don't want to define the defect in consequentialist terms.
My claim is instead:
Model of reality + recognised relevant information → norm to remain open to that information.
If I deliberately exclude X, I may still have a useful decision-making instrument. But I can no longer say that the resulting model represents the relevant part of reality without qualification.
So there are two different questions:
and
The first is an ordinary EV question.
The second is prior to it.
And this is precisely where I think P1 becomes problematic. P1 says that a justified preference between A and B requires comparing their downstream consequences. But the decision to revise the model is not itself simply a comparison between downstream consequences within a fixed model. It concerns the adequacy of the model that will subsequently be used to make those comparisons.
You ask:
Yes — if “should” means “is the action that maximizes the relevant objective.”
But then we have already moved back to ordinary practical reasoning.
My question is one level earlier:
If I say that I should knowingly exclude X because doing so has better consequences, I can calculate those consequences only through some model. But that model must already determine what counts as relevant information and what consequences count in the calculation.
So the model-revision question cannot be completely reduced to an EV comparison without introducing a criterion for model adequacy.
And that criterion is what I am calling an ontological ought.
On “what consequences are those?”
I think this is the most important question in your comment.
My answer is: they don't have to be consequences I have already specified.
That is precisely the point.
If I say:
then I have accepted the structure of P1.
But my claim is:
That claim is about maintaining the relationship between the model and reality, not about predicting a particular downstream outcome.
And there is an important distinction here between ignorance and exclusion.
If I don't know X exists, then X cannot be represented. That is simply the unavoidable limitation of a finite agent.
But once I encounter X and judge it to be relevant, I have a different problem. I now have information that conflicts with the boundary of my existing model.
At that point, maintaining the old model is not merely “being unaware.” It is actively preserving a representation in the face of information that challenges it.
That is the transition I am interested in.