Article
AI
Comment
4 min read

It's our mistakes that make us human

What we learn distinguishes us from tech.

Silvianne Aspray is a theologian and postdoctoral fellow at the University of Cambridge.

A man staring at a laptop grimmaces and holds his hands to his head.
Francisco De Legarreta C. on Unsplash.

The distinction between technology and human beings has become blurry: AI seems to be able to listen, answer our questions, even respond to our feelings. It becomes increasingly easy to confuse machines with humans. In this situation, it is increasingly important to ask: What makes us human, in distinction from machines? There are many answers to this question, but for now I would like to focus on just one aspect of what I think is distinctively human: As human beings, we live and learn in time.  

To be human means to be intrinsically temporal. We live in time and are oriented towards a future good. We are learning animals, and our learning is bound up with the taking of time. When we learn to know or to do something, we necessarily make mistakes, and we take practice. But keeping in view something we desire – a future good – we keep going.  

Let’s take the example of language. We acquire language in community over time. Toddlers make all sorts of hilarious mistakes when they first try to talk, and it takes them a long time even to get single words right, let alone to try and form sentences. But they keep trying, and they eventually learn. The same goes with love: Knowing how to love our family or our neighbours near and far is not something we are good at instantly. It is not the sort of learning where you absorb a piece of information and then you ‘get’ it. No, we learn it over time, we imitate others, we practice and even when we have learned, in the abstract, what it is to be loving, we keep getting it wrong. 

This, too, is part of what it means to be human: to make mistakes. Not the sort of mistakes machines make, when they classify some information wrongly, for instance, but the very human mistake of falling short of your own ideal. Of striving towards something you desire – happiness, in the broadest of terms – and yet falling short, in your actions, of that very goal. But there’s another very human thing right here: Human beings can also change. They – we – can have a change of heart, be transformed, and at some point in time, actually start to do the right thing – even against all the odds. Statistics of past behaviours, do not always correctly predict future outcomes. Part of being human means that we can be transformed.  

Transformation sometimes comes suddenly, when an overwhelming, awe-inspiring experience changes somebody’s life as by a bolt of lightning. Much more commonly, though, such transformation takes time. Through taking up small practices, we can form new habits, gradually acquire virtue, and do the right thing more often than not. This is so human: We are anything but perfect. As Christians would say: We have a tendency to entangle ourselves in the mess of sin and guilt. But we also bear the image of the Holy One who made us, and by the grace and favour of that One, we are not forever stuck in the mess. We are redeemed: are given the strength to keep trying, despite the mistakes we make, and given the grace to acquire virtue and become better people over time. All of this to say that being human means to live in time, and to learn in time. 

So, this is a real difference between human beings and machines: Human beings can, and do strive toward a future good. 

Now compare this to the most complex of machines. We say that AI is able to “learn”. But what does it mean to learn, for AI? Machine learning is usually categorized into supervised learning, unsupervised and self-supervised learning. Supervised learning means that a model is trained for a specific task based on correctly labelled data. For instance, if a model is to predict whether a mammogram image contains a cancerous tumour, it is given many example images which are correctly classed as ‘contains cancer’ or ‘does not contain cancer’. That way, it is “taught” to recognise cancer in unlabelled mammograms. Unsupervised learning is different. Here, the system looks for patterns in the dataset it is given. It clusters and groups data without relying on predefined labels. Self-supervised learning uses both methods: Here, the system uses parts of the data itself as a kind of label – such as, for instance, predicting the upper half of an image from its lower half, or the next word in a given text. This is the predominant paradigm for how contemporary large-scale AI models “learn”.  

In each case, AI’s learning is necessarily based on data sets. Learning happens with reference to pre-given data, and in that sense with reference to the past. It may look like such models can consider the future, and have future goals, but only insofar as they have picked up patterns in past data, which they use to predict future patterns – as if the future was nothing but a repetition of the past.  

So this is a real difference between human beings and machines: Human beings can, and do strive toward a future good. Machines, by contrast, are always oriented towards the past of the data that was fed to them. Human beings are intrinsically temporal beings, whereas machines are defined by temporality only in a very limited sense: it takes time to upload data, and for the data to be processed, for instance. Time, for machines, is nothing but an extension of the past, whereas for human beings, it is an invitation to and the possibility for being transformed for the sake of a future good. We, human beings, are intrinsically temporal, living in time towards a future good – which machines do not.  

In the face of new technologies we need a sharpened sense for the strange and awe-inspiring species that is the human race, and cultivate a new sense of wonder about humanity itself.  

Article
Christmas culture
Creed
4 min read

For the knowing of the how: creating at Christmas

Learning a new craft unfolds the layers of meaning Christmas is clothed in.

Andrew works at the intersection of theology, science and philosophy. He is Canon and Regius Professor of Divinity at Christ Church, Oxford.

A white crocheted angel decoration against a dark background.
Kelly Sikkema via Unsplash.

Childhood Christmas was for me a time of craft and productivity, of baking and decorating, of paper chains and printing cards with dissected potatoes. Christmas was all about making, so homemade presents outshone everything else.  

That was fine if you were a painter, knitter, sculptor, seamstress, or woodworker, and each member of my family was at least one of those things. I was the odd one out: at least until the autumn before last, when I took up crochet.  

My inspiration came from John Milbank: theologian, philosopher, political theorist, poet, and general ruffler of feathers. Not, I have to say, because he sets example with hook and yarn. Rather, he’d written an essay, an essay that spoke to me, as someone often in art galleries but rarely making. We get so invested in fine art, he wrote, that we forget the priority of applied art, of craft and decoration. That’s the foundation. The art we go to see in museums is great only if it succeeds in ‘intensifying this art which is proper to humanity as such.’ So, I took up crochet.  

Crochet, as I hoped, is rather like playing the recorder. It’s not too difficult, even at the beginning, but has plenty of scope for complexity and skill. I’m now three blankets in, plus six cushion covers and a hat. Even my first efforts were gratefully received as presents, and I some of my recent work is much more intricate, and not half bad. 

I’ve finally joined the ‘Christmas is about making’ project: and Christmas really is about making. John Donne put it like this, addressing the Virgin Mary: 

… yea thou art now 
Thy Maker’s maker, and thy Father’s mother; 
Thou hast light in dark, and shutst in little room, 
Immensity cloistered in thy dear womb. 

Mary becomes her ‘Maker’s maker’. In a further twist, which Donne would appreciate, Mary’s child grew up to be a carpenter, or – as the Greek would better be translated – an all-round, general purpose village maker: from hearths to homes, from shelves to structures. 

In thinking about how God took up a human life, writers have often turned to the language of making. In the same poem, Donne has God weaving himself a kind of garment in Mary’s womb: ‘He will wear, / Taken from thence, flesh’. Thomas Pestel (1586–1667) opens an unjustly forgotten Christmas hymn like this: 

Behold, the great Creator makes 
Himself a house of clay, 
a robe of virgin flesh He takes 
which He will wear for aye. 

More familiar still is Charles Wesley’s ‘Hark the Herald Angels Sing’, with its lines: 

 ‘Veiled in flesh the Godhead see, / Hail the incarnate Deity!’  

The language of wearing, of robes and veils, hasn’t always fared well among theologians. I heard of one stern tutor in doctrine who would look round the chapel whenever Wesley’s carol was sung, reserving a stern word for any student who failed to fall silent at that line. He didn’t like the implication that God was merely draped in humanity, making only an outward show of being human.   

Thomas Aquinas saw that worry, writing in the thirteenth century, but argued for charity. The language of clothing isn’t perfect, but we shouldn’t expect it to be. Illustrations gesture towards the truth, they aren’t identical with it, and all the more when we’re talking about God. As long as we don’t think expect the clothing image to say all that needs to be said, there’s mileage to it. For one thing, clothing can make someone visible (as the late Queen knew very well): ‘veiled in flesh, the Godhead see’. Moreover, Christ’s humanity was shaped by his divinity, like a garment is shaped by the body of the one who wears it, yet the body remains unchanged (and so does the garment), just as God became human without becoming any less divine.  

Alongside clothing, Pestel also suggested God working with clay:

‘Behold, the great Creator makes / Himself a house of clay’.

That takes up, and reworks, another textile image. John’s Gospel gets to the heart of the Christmas message with a line so solemn that Christians have been accustomed to drop to their right knee on hearing it read: ‘And the Word was made flesh, and dwelt among us’. That’s how we know it, but a more accurate translation is that the Divine Word ‘pitched his tent among us’. The houses that Pestel knew, however, were made of bricks not cloth, which is to say of clay, so he adapted the image. Or, just as likely, with that clay, he had the ‘house’ of the human body in mind. That would recall lines in Genesis, where God makes Adam out of clay, or ‘the dust of the ground’. In fact, the Hebrew word ‘Adam’ means just that – something like ‘earthling’ – just as ‘human’ is related to the Latin ‘humus’, meaning soil. 

Whether weaving and wearing, or building, or sculpting, or potato printing, this is the message to stop us in our tracks at Christmas: that the Maker made himself human. There is something beautiful that we greet that with homemade presents, with printing cards, with decorating and baking, with craft and productivity, with paint and cloth, paper, wood, and yarn, and with that sublime sort of making that is music. As Pestel puts it, in closing ‘Behold, the great Creator makes’ 

Join then, all hearts that are not stone, 
and all our voices prove, 
to celebrate this holy One, 
the God of peace and love.