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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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6 min read

How to survive a culture war

Blaise Pascal shows us what really underlies our contemporary battles.

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

Two goats lock horns.
Maxime Gilbert on Unsplash.

We often say these days that we are more polarised as a society than ever before. But we're wrong. Maybe the USA is experiencing a particularly sharp divide right now, but they have had their own, much more violent troubles in the past. And in Europe, and especially in Britain, we know a fair bit about culture wars that were literally that – wars.  

In the 17th century, we English had our own civil war where we literally killed each other over religion and politics. We even killed a king. The French did something similar and even more vicious just over 100 years later. That is real polarisation. However spiteful Twitter/X arguments may get, I don't think Charles III or even Kier Starmer is quaking in their beds expecting to be put on trial for treason.  

So maybe our history has something to teach us about how we navigate culture wars.  

The literary critic Terry Eagleton once wrote of our age:  

“the world is accordingly divided between those who believe too much and those who believe too little. While some lack all conviction, others are full of passionate intensity.” 

 We tend to think our contemporary divide between left and right, progressives and conservatives is something new. But we can find echoes of this in previous times.  

A case in point was the mid-17th century – the time of many other upheavals in Europe. Part of the febrile atmosphere of the time saw fierce arguments between rationalists and sceptics.  

There were at the time, two broad strands of thinking about the human condition. On the one had there were the ‘Dogmatists’ who were sure that they knew everything through use of reason or the application of philosophical or scientific method (like René Descartes). On the other hand, there were the ‘Sceptics’ who thought everything was random, or custom, and there is no final Truth to be found (like a figure from the century before – Michel de Montaigne). 

Of course, our own time has its fair share of people with an overwhelming confidence in the power of human knowledge, and the physical sciences in particular, to unlock the secrets of life, the universe and everything. The ‘new atheist’ project of Richard Dawkins and friends was hugely confident in reason and its capacity to tell us all we need to know, dispatching religion to the dustbin of history and instead placing an unshakable faith in the empirical methods of science. It had - and has - definite similarities with this picture of human knowledge.  

Yet on the other hand we also have, in the progressive postmodern project, those who reject any kind of underlying rationality or sacred order either above us or beneath us. For them, there is no underlying Truth to be discovered, and they delight in revealing the instability and illusory nature of any claim to truth. It sounds very much like the culture wars of our time. 

One enigmatic 17th century figure charted a way through this dilemma - Blaise Pascal. When he looked at his century’s culture war, he thought both sides had a point. There is, he observed… 

…open war between men in which everyone is obliged to take sides, either with the dogmatists or with the sceptics, because anyone who imagines he can stay neutral is a sceptic par excellence…. Who will unravel such a tangle? This is certainly beyond dogmatism and scepticism, beyond all human philosophy. Humanity transcends humanity. Let us then concede to the sceptics what they have so often proclaimed that truth lies beyond our scope and is an unattainable quarry, that it is no earthly denizen, but at home in heaven lying in the lap of God, to be known only insofar as it pleases him to reveal it. 

So far, he says, the sceptics, like Montaigne, are right. Truth is beyond our grasp, it does not reside here on earth, openly obvious and ready to be found. If it exists, it exists in some world above us, beyond our reach. How do we even know if we are asleep or awake, given that when we dream, we are as convinced that we are awake as we are when we are truly awake?  

And so, modern progressives, looking to dismantle the assumed results of previous understanding, due to its inherent colonial, patriarchal or abusive past, delight in showing how random and arbitrary is so much of what we take for granted from the past. And, Pascal would add, they have a point. Many of our legal, political and cultural assumptions are purely cultural and arbitrary, and sometimes simply serve to the advantage of the rich and powerful rather than the poor and marginalised. 

Yet on the other side, the ‘dogmatists’, like Descartes, have their strong point, which is that we cannot doubt natural principles. The acids of deconstruction can only take you so far. The most sceptical philosopher still puts the kettle on assuming that it will boil to make a cup of tea. She gets up in the morning assuming that the sun will rise and set again at the end of the day. Despite the corrosive effects of scepticism, Pascal wrote,  

“I maintain that a perfectly genuine sceptic has never existed. Nature backs up helpless reason and stops it going so wildly astray.”  

Despite all our doubt, we still live in a world with order and predictability. Scepticism keeps bumping up against reality.   

So, modern conservatives point to a deeper ‘givenness’ to things, an order within the natural world that we did not create, and yet, mysteriously, seems to be prearranged before we got here. Scientific exploration does make sense. There is a regularity to nature that we can, indeed have to, depend on. Sexual differences exist and can’t be ignored. We are not entirely free to override the natural order of things - there is a deeper rhythm to nature and its capacity for renewal that we only mess with at our peril, as climate change has taught us. As a result, the age-old battle between rationalists and sceptics, progressives and conservatives, will never find resolution, as the arguments flow back and forth.  

Christian faith includes both progressive and conservative impulses. Christians are aware of the brokenness of the world and therefore long to see it changed. The progressive impatience with the way things are, and the yearning for a better world has its roots in Christian faith.  

Yet at the same time, Christianity discerns a divinely created order to the world, a rhythm to the natural world, that cannot be broken and needs to be respected. Therefore, an inherent conservatism is part of Christian faith as well. In other words, the Christian story can explain both and offer a bigger picture than either.  

For Pascal, Christianity offers a diagnosis for this mystery of the human condition, the complex mix of grandeur and misery, infinity and nothing, sceptic and rationalist, in the simple, yet endlessly generative idea that we humans are gloriously created, deeply fallen and yet offered redemption through Jesus Christ. Our sadness is heroic and tragic. In Pascal’s suggestive image, it is “the wretchedness of a great Lord, the wretchedness of a dispossessed king.” 

“We show our greatness,” says Pascal, “not by being at one extreme, but by touching both at once and occupying all the space in between.” For him, the very existence of such culture wars points to the truth of the Christian diagnosis of the human condition. 

Pascal offers us a way between the Scylla of Progressivism and the Charybdis of Conservatism – or perhaps better, to embrace the best of both. Culture wars are tricky to navigate. Yet they might find resolution if we allow them to point us to a deeper reality - our strange mixture of greatness and sadness. And not losing sight of either side of this enduring truth.  

 

Graham Tomlin is the author of Blaise Pascal: The Man Who Made the Modern World  (Hodder) £25.  

Watch Graham explain why he is fascinated by Pascal.

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