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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 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. 

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Mapmaking our meaning in a modern world

Real ‘reasoning’ happens only when we have learned to trust one another.
A hand holds a pen over a map, at the side is closed journal and colour pencils.
Oxana v on Unsplash.

People first began to think about theology not because they were looking for intellectual stimulus or solutions to abstract problems, but because they found themselves living in an unsettling and vastly expanded ‘space’. They were conscious of new dimensions in their connection with each other, new dimensions in coping with their own fear, guilt, despair, a new sense of intimate access to the limitless reality of God. They connected these new experiences with the story of Jesus of Nazareth, executed by the Roman colonial government, reported by his closest friends as raised from death and present with them and their converts in the communication of divine ‘spirit.’ As we read Christian scripture, we are watching the first generations of Christian believers trying to construct a workable map of this unexpected territory. 

When I started writing the assorted pieces that make up the little book on Discovering Christianity (published earlier this year), my hope was above all to convey something of this sense of Christian thinking as a process of mapmaking in a new and bewildering landscape. That’s why one chapter – originally drafted for a Muslim audience – tried to list some of the things that an interested observer might spot in looking from outside at the habits of Christian believers: not first and foremost their spectacular and uniform embodiment of unconditional divine love (if only), but just the sorts of things they said and did, the sort of language used about Jesus, the rituals of induction and belonging. Indeed, if there is one biblical text I had in mind in virtually all the chapters, it is the simple phrase, ‘Come and see’ that Jesus uses in St John’s gospel when he is first followed by those who will become ‘disciples’, literally ‘learners.’ 

‘Come and see’. When we use language like that in everyday life, we’re encouraging others to share something that has excited or troubled us (or both). It’s not a proposal for solving a problem. It’s not even a recruitment campaign. It’s an invitation to stand where someone else is standing and look from there. In the rich symbolic context of John’s gospel, it’s about sharing Jesus’ ‘point of view’ – which is, as we’re told right at the start of the gospel, a point of view unimaginably close to the heart of eternal life and reality itself.  

We can only see in this way when we move away from our ordinary perceptions a bit. Just as we can only learn to swim when we have jumped into the water, so we shan’t learn what faith is all about until we have been prodded by whatever forces around us to take the risk of trusting that (so to speak) the ground is going to hold beneath us if we step forward (I like to speak sometimes about discovering what images, ideas, perspectives and relations are ‘load-bearing’ in our lives).  

So part of the invitation is also about telling the stories of those who have taken that kind of risk and what sort of lives they have shaped for themselves in the light of it. There is little point in summoning others just to share my individual set of feelings. But there is perhaps more weight is saying, ‘A lot of people have felt this shape beneath the surface, this grain running through things.’ Which is why – as the book seeks to explain – theology works with the ‘classical’ shared texts that most Christian communities found themselves reading together in the first hundred years after Jesus; and works also with the history of the arguments and diverse perceptions that reading brought into focus.  

We read and think in company; our theological reflection like the rest of our lives of faith is a shared, ‘conversational’ affair.

It's not unknown outside theology. We have become so much more interested over the last few decades in how to understand works of art not just in terms of what the artist ‘meant’, but in terms of what the actual work does or makes possible. What world does it create? So we read the Bible, obviously, but we also read the readers of the Bible (think of the Jewish Talmud, with the original text of its classical legal discussions literally surrounded on every page by the arguments that this text has generated). We read and think in company; our theological reflection like the rest of our lives of faith is a shared, ‘conversational’ affair. And so along with reading the Bible and immersing ourselves in the history of what sense others have made of the basic text and story, we also bring to bear the sorts of things that are part of our current conversations in society and culture – the habits of ‘reasoning’ that we have picked up.  

There is an important difference between talking about ‘reason’ as a sovereign, detached capacity and talking about ‘reasoning’, the range of processes and practices that carry forward a common life of intelligent learning (and that learning may be at any level of supposed ‘intellectual’ capacity; once more, it’s not about abstractions). Our society these days is fairly comprehensively confused about this: we have a mythological picture of some supremely obvious way of arguing that allows for no final dispute; we call it ‘science’; and then we expect the impossible of it and are disillusioned and sceptical when it can’t give us absolutely certain answers. One of the many ironies of our society is that we are besotted with ‘science’ and at the same time fascinated by the idea that there are many ‘truths’, or else suspicious that apparently objective sources are actually controlled by other interests. Real ‘reasoning’ happens only when we have learned to trust one another’: a long story, but an all-important element in our human discovery. 

Bible, tradition, human reasoning – those are the tools we bring to this job of mapmaking. The book is really just a meditation on those words, ‘Come and see’, as the basis of Christian thinking. At the centre of everything is a set of very ambitious claims about what God is like – and what we are like. Part of what we’re invited to ‘come and see’ is ourselves. Once again it’s not unlike what happens in a really good play or film, when we go away conscious that we have seen not just someone else’s story but something fresh about our own selves. 

And my greatest hope for the book is that it may prompt someone to look a bit harder, to listen in to how Christians talk – and in that moment find that they recognize what’s being said in some complicated and untidy way. One of the most vivid characters in the gospel I’ve been quoting says of Jesus that he has told her everything she has ever done. I hope that those who are moved to investigate a bit further will come to that same unsettling and exciting point where they see themselves freshly, and the new landscape begins to unfold.  

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