Explainer
AI
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. 

Article
Creed
Migration
7 min read

I wrote Jesus was a child refugee, I got called crazy

Digging into history uncovers uncomfortable truths.

Joan is Professor Emerita of Christian Origins and Second Temple Judaism, King’s College London. 

A red sandstone statue of Jesus as a child.
A Victorian statue of Jesus as a child.

As a historian of Jesus, I have sometimes been asked to comment on the question 'what would Jesus do today?'. I have sometimes responded. In September 2015 I wrote a guest post for the Jesus Blog, titled Jesus was a Refugee. It was on the story of baby Jesus’ escape to Egypt with his parents, as written in the Gospel of Matthew, which I conclude is historically true. It is interesting to me, because I want to understand what informed Jesus’ teaching as an adult. 

I am not a theologian, a priest or a pastor. I have spent my academic career carefully working out what is true or false in terms of the many stories of the ancient past. So, when I discuss anything, it is after years of study, collegial discussion and discernment. Historians like me know that our ancient accounts come from particular people at different times, telling things with particular points of view. They don’t seek to tell the whole truth, but they shine a light on what is important to them. They can tweak, spin, modify or drop what is not essential to them, and we see this process unfold in retellings. In what I do, I am as analytical about biblical stories as I am about anything else, recognising that I too am located in a particular time and place, with my own capacity to see or not see. With biblical stories this is both rewarding and challenging because to me they are also Scripture, in that they inform my faith, spirituality and practice. 

But this is a world in which sharing of expertise can go up in a puff of public pushback. 

I wrote at the height of scaremongering about Syrian refugees who were fleeing to Europe to escape the dangers and devastation in their country and, given its relevance, the post was picked up on other sites. On Bible History Daily, there was a furious reaction in comments. People asked whether – even if Jesus was a refugee – his experience could be mapped on to issues of the contemporary world, which are so very different. Some commenters insisted that Jesus and his family could not be aligned with economic refugees like Mexicans or bogus refugees who were actually Muslim terrorists. More stingingly, I was told I was crazy, a professor of b******t and I was blaspheming for even suggesting that Jesus was a refugee.  

That Jesus was a refugee has actually been recognised as part of his life from the very beginning of Christian tradition, and contemporary theologians like Barnabas Asprey can well explore what this means for faith. But it seems that some people were alarmed that I was diminishing Jesus by associating him with people they considered reprehensible.  

My job is to understand Jesus in his own world. If I do it properly, people may well find resonances with today. But I do also understand that it is a tricky thing to map Jesus onto contemporary circumstances, especially contentious ones. Over a hundred years ago the philosopher and physician Albert Schweitzer critiqued the 'quest of the historical Jesus' as a whole as covertly creating a liberal model of Jesus. He commented that the 'historical Jesus will be to our time a stranger and an enigma'. If we met Jesus today, he would seem completely alien to us. So, we do have to be careful when we look to him in our arguments concerning current issues. Yet, Schweitzer also put a lot of trust in the words of Jesus, because his 'spirit, which lies hidden in his words, is known in simplicity, and its influence is direct. Every saying contains in its own way the whole Jesus.' 

So where do we go with this? What did Jesus say? Frankly, Jesus’ ethos was utterly uncompromising. "Woe to you who are rich … woe to you who are well-fed now" (Luke 6:24-25), he said. There are a decent number of Jesus’ statements that suggest people who were economically struggling should be fed and welcomed, and those with wealth should share what they have with the have-nots. Jesus said to a rich man that he should "go, sell all that you have and give to the poor, and you will have treasure in heaven, and come, follow me" (Mark 10:21). Following Jesus was not about becoming destitute, but about joining a community of disciples who saw each other as one big family of siblings. In this group resources were shared (Acts 2:44-45 and 4:32-37). This is beyond philanthropy. And Jesus didn’t talk about the worthiness of the poor; the problem was not with the poor, it was with the rich.  

There’s a big question then in how to use Jesus as a model for ethics. To use Jesus as a model, you have to see the bigger picture of the whole movement he created, within an ancient context, a movement that does not exist any longer in its original form. Was Jesus a refugee? By calling anyone a refugee, in antiquity, I mean someone who flees their home to a place of refuge, to escape danger or disaster. As for my particular 'blasphemy', I reiterate it. Jesus was a child refugee: Jesus’ family fled from the danger of the Roman client king in Judaea, Herod, and escaped to Egypt. In classical Christian doctrine, this is not at all thought of as diminishing Jesus. It made Jesus one of us, in all our human hardships. 

I think he turns things around, radically, so that the life of the wandering refugee is actually a paradigm for action. 

Curiously, the fears expressed by the commenters on my post mirror ancient attitudes to poor, foreign people. Later apocryphal stories of the holy family in Egypt present them facing continual hostility from Egyptian townsfolk and attacks by robbers. These tales reflect an actual situation in which incoming foreigners, for whatever reason, were not welcome. For refugees, it could be a life of vulnerability.  In the second century, the anti-Christian writer Celsus scoffs that child Jesus in Egypt worked for hire because of his poverty (Origen, Contra Celsum 1:28). 

Egypt itself was not a totally safe place to be Jewish. Under the Roman prefect Flaccus (38-39 CE), soon after Jesus, there were riots and pogroms against the Jewish population of Alexandria, as the historian Josephus records (War 2:487-98; Ant. 18:257-60). In 41 CE the Roman emperor Claudius cautioned the long-settled Jewish population of Alexandria that they lived in 'a city not their own', and they were 'not to bring in or invite Jews who sail down to Alexandria from Syria[-Palestine]' (CPJ I:151). Later in the first century (70-73 CE), there were many Jewish refugees fleeing dangers in Judaea by going to Egypt (War 7: 407–419). Hundreds of these men, identified as troublemakers by the Romans, were killed, along with their families. I explore this and much more in my new book, Boy Jesus: Growing Up Judean in Turbulent Times. The life of a refugee was hard, and Jesus would have been told his parents’ stories about what they endured. 

This is what is so interesting to me, because we know from contemporary studies of trauma that this would have had an impact on Jesus. There is received trauma resulting from the suffering, persecutions, hardships and distresses of parents and grandparents. 

So how are these experiences reflected in Jesus’ sayings? I think he turns things around, radically, so that the life of the wandering refugee is actually a paradigm for action. Jesus, in his mission as a teacher and healer, identified himself as a displaced person: "Foxes have holes and the birds of the air have nests, but the son of humanity has nowhere to lay his head" (Matt. 8:20), he said. Jesus was itinerant, and he entered villages with nothing, offering healing and looking for kindness (food, shelter). He asked those who acted in his stead to go out without money or extra clothing, essentially to walk along the road like destitute refugees who had suddenly fled from home, relying on the generosity and hospitality of the ordinary people whose villages they entered (Mark 6.8-11). And it was precisely the villagers’ welcome or not to such people that showed what side they were on when it came to divine justice: "And if any place will not receive you and refuse to hear you, shake off the dust on your feet when you leave, for a testimony to them" (Mark 6.11).  

If the sayings of Jesus show his spirit, time and again this spirit rests with the experience of the marginalised, the displaced, the persecuted, the sick and the poor. I say this as a historian, thinking of Jesus in his own time. How that sits with contemporary issues remains a question. To what extent can people of modern times, with all our baggage of private ownership, debts and anxieties about our jobs and livelihoods, share in Jesus’ ethos? In answering it, I suspect few of us will feel comfortable, whatever side we think we are on.  But taking out the logs in our own eyes, rather than the specks in someone else’s, has never been easy. 

 

Boy Jesus: Growing Up Judaean in Turbulent Times, Joan Taylor, SPCK Publishing.

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