Explainer
AI - Artificial Intelligence
Belief
Creed
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 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. 

Column
Creed
Death & life
Suffering
4 min read

Dressing up in the dark: what Halloween reveals about our uneasy age

Why Halloween feels darker this year

George is a visiting fellow at the London School of Economics and an Anglican priest.

Skeleton figurines clothed in Victoria outfits.
Wallace Henry on Unsplash.

Something bothers me about the approach of this years’ All Hallows’ Eve on 31 October and its accompanying night-time Halloween parties, like an irksome background unease at an encroaching darkness behind the childlike cosplay of the event itself. 

God knows, there have been infinitely darker years, some of them within living memory. Two world wars, one of them containing the Holocaust and it doesn’t get darker than that. Genocides, such as Rwanda’s, and famines, from China to Russia to Ethiopia. Terrorist atrocities: Munich, Lockerbie, Madrid, 9/11.  

Mass murders of children: Dunblane, Peshawar, Sandy Hook, Southport, to name a few in such a grim litany. Harder to imagine, because they’re further away culturally in either time or place, are the great plagues, conflagrations and disasters of history: The Black Death, Indian Ocean tsunami, Hiroshima.  

So one wonders if it’s impertinent to feel uneasy about Halloween this year. I suspect it’s the discomfort of something bubbling under and as yet unseen, like unexploded magma or the unbearable tension of a faultline threatening to give way. 

To name it is to call out a most fragile world peace – the pretence of a peace in the Middle East that cannot hold; a peace process that hasn’t even started between Russia and neighbouring Ukraine. Both presided over by an American president who at best isn’t up to securing either and, at worst, has zip interest in democratic process and is only in it for himself. 

Then there’s apparently unstoppable mass migration, driven by climate change, to western economies already going to hell in policy-free handcarts. The creeping re-growth of nationalism and antisemitism, social media fuelled hatred of refugees, the collapse of trust in institutions of state in the UK’s unwritten constitution, such as the royal family, parliament, the police and the Church. Grooming gangs and trafficked sex-slaves; we’re not in the gloaming of dusk – it sometimes feels like night has fallen. 

At what price, then, do we dress our children (and ourselves) as ghouls and witches and demons and make jack o’lanterns to celebrate the dark side at Halloween? It’s the question at the heart of a debate that customarily divides between those of us who say it’s just a bit of fun and we shouldn’t be spoil-sports, against others who warn censoriously about conjuring up the devil, who once abroad will play havoc with those who so foolishly summoned him. 

That’s a fairly pointless argument, as the positions just get repeated and that doesn’t get us anywhere. More fruitful may be to examine what the dark side is, what it is we’re conjuring, if anything, and whether it plays any role in what we fear we may be facing, which ranges from the breakdown of the world order, to great wars and, not to put too fine a point on it, an apocalypse. 

Stumbling about in the dark, we’re bound to trip over what’s called theodicy – the theological study of how a supposedly all-loving God can tolerate human evil. One of the more recent and most accessible contributions to this school comes from the US journalist and academic Brandon Ambrosino, who imagines the pursuit of theodicy not to be climbing stairs of knowledge, but the descent to a dark basement: “If the living room is where we ask how exactly God moved Trump’s head out of the way of the shooter’s bullet, the basement is where we ask if God caused the bullet to end up in a fire-fighter’s body.” 

One of Amrosino’s conclusions is that “evil is not properly a thing… Evil is nothing, literally [his italics]. It is a void in the fabric of God’s creation.” This concept of evil – the dark, as any parent would comfort a child – as empty is appealing. In the dark of that basement, there is nothing there but hope.  

This idea of evil as a void, or moral vacuum, is told in the story of a student (not young Albert Einstein, as widely claimed) who demurs when taught that the problem of evil proves the non-existence of God. “Does cold exist?” asks the student. Of course, replies the teacher. But cold is only the absence of energy, which creates heat. Likewise, does darkness exist? Yes, but it has no wavelength, so it is only the absence of light. 

What brings the energy of light and heat, like why there is something rather than nothing, is too big a question for now. But it may go some way to addressing the darknesses listed in the first half of this column.  

And perhaps it’s a thought to carry into this Halloween. Children dressed as undead phantasms, with Mum’s lipstick tracing blood trickles from their mouths, aren’t joining the dark, but filling what is empty with laughter. And, in doing so, they’re mocking it, which must offer some sort of hope for the future.   

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