It's our mistakes that make us human

What we learn distinguishes us from tech.

Silvianne Aspray

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.

Explainer

Creed

Weirdness

1 May 2024

4 min read

Those unexpected angel stories

Shedding a strange light on a disenchanted world.

Graham Tomlin

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

An almost abstract image with overlays of colour over a group of people standing.

Jr Korpa on Unsplash.

Unlike Robbie Williams, who sings about them, sometimes I preach about angels. When I do something always happens – people start telling me their own angel stories.

There was the one a soldier friend told me. During an army climbing expedition to Mount Kenya, one of his team had fallen to his death from a sheer rock face. Caught up in the drama of the moment, my friend found himself stuck on a ledge, unable to move up or down, paralyzed by fear and frustration. Suddenly, in an inaccessible part of the world, where they had seen no-one for days, on a mountain where they were the only registered group present, a climber appeared out of nowhere, moved onto the ledge where he was standing, tied a rope into his harness, lowered him down the rockface to safety before disappearing up the face never to be seen again.

Or the story of a pastor who got into trouble in an airport. A stranger walked by and asked if he could help, and remarkably fixed a seemingly intractable problem. The grateful passenger took a selfie of himself and the stranger, but when he looked at the phone later on, there was a picture of himself, grinning into the camera, with his arms around… nothing.

Why do so many stubbornly believe in angelic beings, when a materialist view of the world laughs scornfully at the idea as a bit of pre-modern superstition?

These are not just modern stories. In the second century, a young man called Justin from Asia Minor was working his way through the various schools of Greek philosophy. One day, he was walking along the beach at Ephesus, wondering, as young people have always done, about the meaning of life in general and his own life in particular, when a mysterious old man came alongside and joined him in conversation. As they walked together, the old man spoke about the philosophers and how none of them were quite able to answer the deepest mysteries of life. He advised Justin to read the Old Testament prophets, before disappearing into the distance. Justin did so, became a Christian and went on to become one of the greatest early theologians of the Church and one of its early martyrs for the faith – hence the name he is remembered by today - Justin Martyr.

Was it an angel? Or a real, yet mysterious old man? Are angels real? And if so, what is the point of them? Surveys tell us that 30 per cent of British people believe in angels. In the USA that figure rises to 70 per cent. Why do so many stubbornly believe in angelic beings, when a materialist view of the world laughs scornfully at the idea as a bit of pre-modern superstition? After all, the cynic might say all these stories can be explained - these were just ordinary people who turned up unexpectedly.

The encounter opened the eyes of the person in the story to another realm, a world unseen yet just as real as the seen.

The word angelos in Greek simply means messenger – and it can mean either a human or an angelic one. In the Bible, angels don’t usually appear with glowing white clothing and wings sprouting from their shoulder blades. When they come to people with a message, they often appear in the guise of ordinary people. In fact, it’s often hard to tell whether you have been visited by an angel or just another human.

The point, therefore, is not so much about the angels, but about the message that they bring. They tend to turn up when there is something particularly important to announce, something like the birth of Jesus, when an angel appears to the young Mary to tell her the news that she will give birth to the Son of God, her, and then quite a few of them turn up to sing to the shepherds, an indication that something big was happening.

In each of the stories above, the encounter opened the eyes of the person in the story to another realm, a world unseen yet just as real as the seen. An inexplicable encounter with what just might have been an angel has the capacity to open our eyes to the fact that the world is bigger than we often assume – that as Hamlet says to his dull, practically minded friend: “There are more things in heaven and earth, Horatio, than are dreamt of in your philosophy.”

The Nicene Creed, the classic summary of Christian faith, speaks of God as the ‘Creator of all things seen and unseen’. We are all used to what we can see, yet some of us only have space in our world for things that can be seen, touched or measured. Yet there are surely those unseen realities – things we cannot see or measure, like love, compassion, holiness, miracles, God and - yes – angels.

A random sermon on angels elicits hushed stories that people feel almost embarrassed to speak. Such mysterious experiences are far more common than we realise, as Dan Kim points out elsewhere on this site. Yet these experiences are not an end in themselves but are perhaps a way of God getting our attention when we refuse to listen to more ordinary approaches. These experiences open our eyes to a dimension of reality that is as real, if not as visible as the one we deal with every day – and become a gateway to a journey of discovery of an unseen world alongside the seen, that sheds a strange but welcoming new light onto a disenchanted world.