Explainer

Belief

Creed

6 November 2024

5 min read

Whether it's AI or us, it's OK to be ignorant

Our search for answers begins by recognising that we don’t have them.

Simon Walters

Simon Walters is Curate at Holy Trinity Huddersfield.

A street sticker displays multiple lines reading 'and then?'

Stephen Harlan on Unsplash.

When was the last time you admitted you didn’t know something? I don’t say it as much as I ought to. I’ve certainly felt the consequences of admitting ignorance – of being ridiculed for being entirely unaware of a pop culture reference, of being found out that I wasn’t paying as close attention to what my partner was saying as she expected. In a hyper-connected age when the wealth of human knowledge is at our fingertips, ignorance can hardly be viewed as a virtue.

A recent study on the development of artificial intelligence holds out more hope for the value of admitting our ignorance than we might have previously imagined. Despite wide-spread hype and fearmongering about the perils of AI, our current models are in many ways developed in similar ways to how an animal is trained. An AI system such as ChatGPT might have access to unimaginable amounts of information, but it requires training by humans on what information is valuable or not, whether it has appropriately understood the request it has received, and whether its answer is correct. The idea is that human feedback helps the AI to hone its model through positive feedback for correct answers, and negative feedback for incorrect answers, so that it keeps whatever method led to positive feedback and changes whatever method led to negative feedback. It really isn’t that far away from how animals are trained.

However, a problem has emerged. AI systems have become adept at giving coherent and convincing sounding answers that are entirely incorrect. How has this happened?

This is a tool; it is good at some tasks, and less good at others. And, like all tools, it does not have an intrinsic morality.

In digging into the training method for AI, the researchers found that the humans training the AI flagged answers of “I don’t know” as unsatisfactory. On one level this makes sense. The whole purpose of these systems is to provide answers, after all. But rather than causing the AI to return and rethink its data, it instead developed increasingly convincing answers that were not true whatsoever, to the point where the human supervisors didn’t flag sufficiently convincing answers as wrong because they themselves didn’t realise that they were wrong. The result is that “the more difficult the question and the more advanced model you use, the more likely you are to get well-packaged, plausible nonsense as your answer.”

Uncovering some of what is going on in AI systems dispels both the fervent hype that artificial intelligence might be our saviour, and the deep fear that it might be our societal downfall. This is a tool; it is good at some tasks, and less good at others. And, like all tools, it does not have an intrinsic morality. Whether it is used for good or ill depends on the approach of the humans that use it.

But this study also uncovers our strained relationship with ignorance. Problems arise in the answers given by systems like ChatGPT because a convincing answer is valued more than admitting ignorance, even if the convincing answer is not at all correct. Because the AI has been trained to avoid admitting it doesn’t know something, all of its answers are less reliable, even the ones that are actually correct.

This is not a problem limited to artificial intelligence. I had a friend who seemed incapable of admitting that he didn’t know something, and whenever he was corrected by someone else, he would make it sound like his first answer was actually the correct one, rather than whatever he had said. I don’t know how aware he was that he did this, but the result was that I didn’t particularly trust whatever he said to be correct. Paradoxically, had he admitted his ignorance more readily, I would have believed him to be less ignorant.

It is strange that admitting ignorance is so avoided. After all, it is in many ways our default state. No one faults a baby or a child for not knowing things. If anything, we expect ignorance to be a fuel for curiosity. Our search for answers begins in the recognition that we don’t have them. And in an age where approximately 500 hours of video is uploaded to YouTube every minute, the sum of what we don’t know must by necessity be vastly greater than all that we do know. What any one of us can know is only a small fraction of all there is to know.

Crucially, admitting we do not know everything is not the same as saying that we do not know anything.

One of the gifts of Christian theology is an ability to recognize what it is that makes us human. One of these things is the fact that any created thing is, by definition, limited. God alone is the only one who can be described by the ‘omnis’. He is omnipotent, omnipresent, and omniscient. There is no limit to his power, and presence, and knowledge. The distinction between creator and creation means that created things have limits to their power, presence, and knowledge. We cannot do whatever we want. We cannot be everywhere at the same time. And we cannot know everything there is to be known.

Projecting infinite knowledge is essentially claiming to be God. Admitting our ignorance is therefore merely recognizing our nature as created beings, acknowledging to one another that we are not God and therefore cannot know everything. But, crucially, admitting we do not know everything is not the same as saying that we do not know anything. Our God-given nature is one of discovery and learning. I sometimes like to imagine God’s delight in our discovery of some previously unknown facet of his creation, as he gets to share with us in all that he has made. Perhaps what really matters is what we do with our ignorance. Will we simply remain satisfied not to know, or will it turn us outwards to delight in the new things that lie behind every corner?

For the developers of ChatGPT and the like, there is also a reminder here that we ought not to expect AI to take on the attributes of God. AI used well in the hands of humans may yet do extraordinary things for us, but it will not truly be able to do anything, be everywhere, or know everything. Perhaps if it was trained to say ‘I don’t know’ a little more, we might all learn a little more about the nature of the world God has made.

Explainer

Atheism

Belief

Creed

Epistimology

12 June 2024

7 min read

The difference between Richard Dawkins and Ayaan Hirsi Ali

How we decide what is true rests on where we start from.

Graham Tomlin

Graham is the Director of the Centre for Cultural Witness and a former Bishop of Kensington.

A man and woman speaker on a stage greet and embrace each other.

Friends reunited.

UnHerd.

If you want a deep dive into some of the big questions of our time, and a fascinating clash of minds, just listen to the recent conversation between Richard Dawkins and Ayaan Hirsi Ali.

In case you haven’t heard the story, as a young devoutly Muslim Somali-Dutch woman, Ayaan Hirsi Ali turned her back on Islam to become a poster-child of the New Atheist movement, often mentioned in the same breath as the famous ‘four horsemen’ of the movement – Dawkins, Dennett, Harris and Hitchens. When she announced she had become a Christian (or, as she described herself, a ‘lapsed atheist’) in November 2023, it sent shock waves through atheist ranks. A public meeting with her old friend Richard Dawkins was therefore eagerly anticipated.

As the conversation began, Ali described a period in the recent past when she experienced severe and prolonged depression, which led her even to the point of contemplating suicide. No amount of scientific-based reasoning or psychological treatment was able to help, until she went to see a therapist who diagnosed her problem as not so much mental or physical but spiritual - it was what she called a ‘spiritual bankruptcy’. She recommended that Hirsi Ali might as well try prayer. And so began her conversion.

Of course, Dawkins was incredulous. He started out assuming that she had only had a conversion to a ‘political Christianity’, seeing the usefulness of her new faith as a bulwark against Islam, or as a comforting myth in tough times, because, surely, an intelligent person like her could not possibly believe all the metaphysical mumbo-jumbo that vicars preach from the pulpit.

He was then somewhat taken aback by Ali’s confession that she did choose to believe the reality of the incarnation, that Jesus was the divine Son of God born of a virgin and that for a God who created the world, resurrecting his Son Jesus was no big deal. With a rueful shake of the head, Dawkins had to admit she was, to his great disappointment, a proper Christian.

Yet he was insistent he didn’t believe a word of it. The nub of the issue for Dawkins seemed to be his objection to the idea of ‘sin’. For him, all this is “obvious nonsense, theological bullshit… the idea that humanity is born in sin, and has to be cured of sin by Jesus being crucified… is a morally very unpleasant idea.”

Of course it’s unpleasant. Crucifixions generally were. It’s where we get our word excruciating from. And from the perspective of someone who has no sense whatsoever that they need saving, it is distasteful, embarrassing, not the kind of thing that you bring up in Oxford Senior Common Rooms, precisely because it is just that – unpleasant. I too find the notion that I am sinful, stubborn, deeply flawed, in desperate need of forgiveness and change unpleasant. I would much rather think I am fine as I am. Yet there are many things that are unpleasant but necessary - like surgery. Or changing dirty nappies. Or having to admit you are addicted to something.

And that is ultimately the difference between Dawkins and Ali. They are both as clever as each other; they have both read the same books; they both live similar lives; they know the same people. Yet Ayaan has been to a place where she knew she needed help, a help that no human being can provide, whereas Richard, it seems, has not.

It is like trying to measure the temperature of a summer’s day with a spanner. Spanners are useful, but not for measuring temperature.

Dawkins responded to Ali’s story by insisting that the vital question was whether Christianity was true, not whether it was consoling, pointing out that just because something is comforting does not mean it is true. True enough, but then it doesn’t mean it is not true either. The problem is, however, how we decide whether it is true. Dawkins seems to continue to think that science - test tubes, experiments and the rest - can tell one way or the other. Yet as the great Blaise Pascal put it:

If there is a God, he is infinitely beyond our comprehension, since, being invisible and without limits he bears no relation to us. We are therefore incapable of knowing either what he is or whether he is.

Science can’t really help us here. It is like trying to measure the temperature of a summer’s day with a spanner. Spanners are useful, but not for measuring temperature.

Whether Christianity makes sense or not cannot be determined by asking whether it is scientifically plausible or logically coherent – because that all depends on which scientific or logical scheme you are using to analyse it. It is all to do with the place from which you look at it, your ‘epistemic perspective’ to give it a fancy name. From the perspective of the strong, the super-confident, the sure-of-themselves, Christianity has never made much sense. When St Paul tried to explain it to the sophisticated first century pagans of Corinth – he concluded the same - it was ‘foolishness to the Greeks’.

Christianity makes no sense to someone who has not the slightest sense of their own need for something beyond themselves, someone who has not yet reached the end of their own resources, someone who has never experienced that frustrating tug in the other direction, that barrier which stands in the way when trying and failing to be a better version of themselves – that thing Christians call ‘sin’.

Why would you need a saviour if you don’t need saving? Would you even be able to recognise one when they came along? No amount of brilliant argument can convince the self-satisfied that a message centred on a man who is supposed to be God at the same, time, much less that same man hanging on a cross, is the most important news in the world. It is why Christianity continues to flourish in poorer than more affluent parts of the world, or at least in places where human need is closer to the surface.

She found the atheist paradigm that she used to believe, and that Dawkins still does, was no longer adequate for her.

The philosopher of science Thomas Kuhn described what he called ‘paradigm shifts’. They happen when a big scientific theory of the way things are gets stretched to breaking point, and people increasingly feel it no longer functions adequately as an explanation of the evidence at hand. It creaks at the seams, until an entirely new paradigm comes along that better explains the phenomena you are studying. The classic example was the shift from Newtonian to Einsteinian physics, which was not a small shift within an existing paradigm, but a wholesale change to a completely new way of looking at the world.

That is what Christians call conversion. This is what seems to have happened to Ayaan Hirsi Ali. What marks her out from Dawkins is not that she has found a crutch to lean on, whereas he is mentally stronger, so doesn’t need one. It is that she found the atheist paradigm that she used to believe, and that Dawkins still does, was no longer adequate for her – it no longer could offer the kind of framework of mind and heart that could support her in moments of despair as well as in joy. It no longer made sense of her experience of life. It could no longer offer the kind of framework that can resist some of the great cultural challenges of the day. This was not the addition of a belief in God to an existing rationalist mindset. It was adopting a whole new starting point for looking at the world. When she first announced her conversion she wrote: “I ultimately found life without any spiritual solace unendurable — indeed very nearly self-destructive. Atheism failed to answer a simple question: what is the meaning and purpose of life?” This is a classic paradigm shift.

Of course, Dawkins can’t see this. He is still in the old paradigm, one that still makes perfect sense to him. It’s just that he thinks it must make sense to everyone. It is surely the one that all right-thinking people should take.

As the conversation continued, Ayaan Hirsi Ali often seemed like someone trying to describe the smell of coffee to someone without a sense of smell. Dawkins in turn was like a colourblind person deriding someone for trying to describe the difference between turquoise and pink, because of course, anyone with any sense knows there is no real difference between them.

No amount of proof or evidence will ever convince either that the other is wrong. They are using different methods to discover the truth, one more analytical and scientific, the other more personal and instinctive. The question is: which one gets you to the heart of things? It’s decision every one of us has to make.