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.

Column

Belief

Christmas culture

Creed

25 December 2024

7 min read

Why the incarnation adds up for me

There’s much more to it than maths and linguistics.

Jonathan Rowlands

Jonathan is a theology lecturer and Liverpool FC fan.

An abstract image of red and gold fluid shapes akin to stained glass, seem to depict a face and an upstretched hand.

Jr Korpa on Unsplash.

I’m rubbish at maths.

This hasn’t actually held me back all that much in life because I’m a theologian and biblical scholar by profession; I basically train vicars for a living. Being bad at maths means I fit in well in the Church because – I don’t know if you’ve noticed – Christianity is rubbish at maths too.

We go to school and we’re taught things like one plus one plus one equals three. We then go to Church and we’re told one Father plus one Son plus one Holy Spirit now somehow equals one God.

And the rubbish maths doesn’t stop there.

The Church also says that Jesus is God incarnate: that He is 100 per cent God and 100 per cent human. Even I know that this isn’t how percentages work.

But what does it mean to say that Jesus is 100 per cent God and 100 per cent human? More importantly: why should you care? What difference does this make to you?

What is the incarnation?

If you’ve ever had chilli con carne, you might know this literally means ‘chilli with meat’; ‘carne’ means ‘meat’. And the ‘carne’ in ‘incarnation’ is exactly the same: it means ‘meat’ or ‘flesh’.

So, we can think of ‘incarnation’ as ‘enfleshment’, or ‘taking on flesh’, or ‘becoming flesh and blood’. This is what we mean when we talk about ‘incarnation’: that someone or something has become flesh and blood.

In the Bible we read that, while Jesus “existed in the form of God … He emptied Himself, taking the form of a servant, assuming human likeness.”

And this is where the maths of the whole enterprise starts to get tricky.

The Bible does not claim that Jesus stops being God when He is human, or that He is somehow ‘less God’ in some way. Nor does it say that Jesus is anything less than completely human.

The word translated as ‘form’ in English – the ‘form’ of God, and the ‘form of a human servant’ – is morphē in Greek (the language the New Testament was written in). It’s where we get English words like ‘morph’. The animated character Morph is a little clay man who changes his form – his shape – at will. The Mighty, Morphing Power Rangers are people who change their form to become superheroes.

Something like this happens to Jesus in the Gospels, too, when Jesus’ face begins to shine like the sun and his clothes become unnaturally white. Most English translations say that Jesus is ‘transfigured’.

I don’t know about you, but that’s not a word I often use; things are very rarely ‘transfigured’ in my life.

The Greek word underlying this is metamorpheō, where we get English words like ‘metamorphosis’ from. Hopefully you can see that morph (the word for ‘form’) in the middle of the word metamorpheō. And whenever a Greek word has meta- at the start of it – like in metamorpheō. It’s to do with change.

Here, then, Jesus is literally trans-form-ed. Jesus, while in human form, is now revealed in His divine form.

It’s not that Jesus becomes God in this moment, or that he stops being human. Rather, Jesus is revealed in the transfiguration – in his metamorphosis – to be, and to have always been, fully God and fully human.

And so, when the Church celebrates the incarnation at Christmas, it celebrates God’s perfect eternal Son becoming embodied – taking on human flesh and a human body – in the person of Jesus.

This is not the life of independence, autonomy, and self-sufficiency I am so often encouraged to cultivate by the world around me. It’s a life of needing other people

Okay, at this point, you might be thinking: “That’s lovely, but who cares?”

Well, the Church’s claim that Jesus is 100 per cent God and 100 per vent human is deeply important for every one of us. Without it, we’re scuppered. In particular, the incarnation matters for at least four reasons.

First, the incarnation means we really do see God when we see Jesus. Jesus is fully God. In Jesus, “the fullness of God was pleased to dwell,” to use the Bible’s language. In other words, then, there is no God hidden behind Jesus.

Jesus makes it genuinely possible to know God; if Jesus was anything less than fully God, then we would only know a diluted, watered down version of God through Him.

Second, without the incarnation there can be no rescuing of humanity, or of the world around us.

You don’t have to look very far to see the worst of humanity. All too often it feels as though those in power are exactly the last people we would want to wield it. Whether you’d call yourself a Christian or not, I think we can all agree that things need fixing.

The Church claims Jesus came to fix things.

Being fully God and fully human, Jesus acts as our representative to God, and God’s representative to us. He overcomes any difference between God and the world, and restores it to the glorious state in which God intended it to be.

But this act of fixing – of setting things right, of restoration, of transformation – is only possible for someone fully God and fully human. Only the incarnation makes it possible for us and the world around us to be put right.

Third, because Jesus is fully human, His life shows us what it means to live well.

Jesus is the most ‘human’ human who has ever human-ed. He is a human cranked up to eleven. Jesus’ life is what it looks like to live the perfect human life. He does not imitate our humanity; we imitate His. We are not the norm for what humanity looks like; He is.

But Jesus’ life does not look like my idea of perfect. Jesus’ perfect human life involved complete and utter dependency on other people.

As a baby, Jesus’ mum and dad cleaned up his poo and His sick; Mary probably breastfed Him. As a child, Jesus relied on other people to be educated. As a man, Jesus had no home: His dad probably now dead and His mum convinced he’d gone mad, He relied on other people for shelter, for clothes, and for food.

This is not the life of independence, autonomy, and self-sufficiency I am so often encouraged to cultivate by the world around me. It’s a life of needing other people.

The incarnation then, shows us what it does – and does not – mean to live well.

Fourth, and finally, the incarnation means that none of the awful things that we do to each other and are done to us by others define our value, our worth, or our humanity.

Jesus was a victim of sexual abuse.

Some people are very resistant to this idea. I wonder if there are misguided notions of shame at play here: as though this would somehow make Jesus less human, or less God, or less saviour.

Again, Jesus has other ideas.

All four of the Gospels tell us that Jesus was stripped naked as part of His torture and death at the hands of the Romans. And we know from historical records that this is what the Romans did to those they crucified: they stripped them and they tortured them nakedly and in public, as an act of very deliberate humiliation and degradation.

The radical claim of Jesus’ life – of the incarnation – is that this does not make Him less-than-human in any way.

No, remember: Jesus is more human than anyone who’s ever lived. He is the norm for what it means to be human, not us. Nor does it make Him less God, or less of a saviour. Jesus’ perfect life tells victims of abuse that their lives are not tarnished, or diminished, or downgraded through the actions of others.

The incarnation, then, is God’s decisive act to show the world, once and for all, that He is for us – that He is for you, and for me. So much so, that God has chosen to become entirely like us, that we might become more like Him.

In the incarnation, God decisively declares the goodness of humanity by freely choosing to become fully human. To be human, then, is not to be someone or something that God flees from. Rather, God loves humanity so much – He loves you so much – that He has decided He cannot be without you, and He cannot be Himself without becoming like you.