Review
Art
Culture
5 min read

Pesellino: making the vital visible

Great art doesn’t just delight, it educates. Andrew Davison recalls learning deep wisdom from a child as he reviews the Pesellino exhibition at the National Gallery, London.

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

A painted altarpiece depicts a crucified Christ surrounded by followes, angels and soldiers.
The Pistoia Santa Trinita Altarpiece, Francesco Pesellino.
The National Gallery

My favourite idol features prominently in National Gallery’s new exhibition of paintings by Francesco Pesellino (1422–1457). I say that by way of provocation: I don’t really think it’s an idol, but that is how it was described to me – by a ten-year-old – in one of the best conversations I’ve ever had as a teacher.  

That was fifteen years ago. I was in the gallery to give a theological tour, as part of a Confirmation class for Westminster Abbey. Half an hour in, we came to Pesellino’s Pistoia Altarpiece. It’s a glorious painting, but I was unconvinced by what it sets out to do, with its dead Christ within a portrayal of the Trinity of Father, Son, and Holy Spirit. The doctrine of the Trinity is about the nature of God, as love and life, and there’s no death there.  

Not that I mean to single out Pesellino for criticism. He isn’t the only painter to represent God that way. Massacio’s version is one of the most significant works of the early Florentine Renaissance, resurrecting linear perspective in painting. Just down the road from the National Gallery, at the Courtauld Institute, there’s a similar painting of the Trinity by Botticelli. They’re all magnificent, I just think that if you’re going to try to depict God, the emphasis should be on life.  

Standing before Pesellino’s painting fifteen years ago, with those misgivings in mind, I asked the dozen or so kids in the Confirmation class what might be wrong with what the painter as trying to do. One child replied instantly: ‘Please Father, it is an idol.’ Dread rose within me. This child was an Arab Christian. Had he, I wondered, grown up in a culture that treated religious art as idolatrous? Had I offended his conscience continuously for the past half hour, with painting after painting? Best to find out. ‘Have the other paintings been idols?’, I asked. ‘No’, he replied. ‘Why not? Why is this one bad?’ His reply came without pause: ‘Because there’s God the Father in it.’ This was getting interesting. ‘So’, I asked, ‘it’s OK to show Jesus, like the other paintings we’ve seen today, but not God the Father?’ ‘Yes’, was his firm opinion. 

These are deep waters, and this was a thoughtful child. To this day, the Orthodox Churches generally forbid depicting of God the Father in icons. Then came one of the most glorious moments of my life as a teacher. ‘Why’s that?’, I asked. ‘Why can we paint Jesus, but not the Father?’ The boy stood silent for some moments. ‘Because’, he said, the cogs of his mind clearly turning, ‘because… because God has made an image of himself in Jesus… You could see Jesus… so you can paint him.’ This was no pre-packaged answer. He was not recycling anything he’d been told before. He was recapitulating the arguments of the Seventh Ecumenical Council (at Nicaea, in AD 787) in real time.  

The eight century was a turbulent time when it comes to religious images. They were supressed in the Byzantine Empire from around AD 730, with a firm condemnation in AD 754. Twenty-three years later, at Nicaea, the church reversed the ban. The decisive argument was formulated by St John of Damascus (AD 675 or 676 – 749): ‘When the Invisible One becomes visible to flesh, you may then draw a likeness of His form.’ It’s the same position as our young theologian in the National Gallery had got to on his own.  

In this way, Christian art rest on Christmas: on the Incarnation, on God’s coming-into-the-flesh. Heir to the Judaic prohibition of ‘graven images’ Christianity – or most of it – made its peace with depicting holy things, and art in churches, because of Christmas, where we see ‘God made visible’ in Jesus. 

In the mystery of the Word made flesh 

the light of your glory has shone anew upon our minds 

that seeing here God made visible,  

we may be caught up in love for God whom we cannot see. 

Those are words from the central acclamation of Christmas (the Eucharistic preface) at Midnight Mass (and at Holy Communion for the rest of Christmastide). ‘Seeing here God made visible’. 

The events of Christmas form one of the two poles of Christian art. Some delightful examples feature in the Pesellino exhibition: a virgin and child and an Annunciation. The other supremely worthy subject for Christian art is the crucifixion and all that surrounds it. As I have noted, in the current exhibition the crucifixion features in his Trinity altarpiece. God’s humanity is most clearly witnessed at the beginning of Christ’s life, and at the end.  

 In the intervening years, I have mellowed towards Pesellino’s painting, and that way of depicting something about God. Painting the eternal reality of God is impossible, but in Jesus we see what we need to see. There is no death in God, but the crucifixion is what God’s life looks like when it is made flesh in a world full of evil. The crucifixion shows God’s embrace of human life to the furthest extremes of suffering and degradation. It shows the life of God overcoming death. We can hold onto what the crucifixion offers in a painting like this one, while remembering that the Resurrection underlines the priority of God’s life over death. One painting can’t say everything.  

Those fifteen years ago, I was aware that I’d been in a remarkable exchange, one that I would not forget. As I found across my time as a curate, children ask the best theological questions. That might be reason to go to see the Pesellino exhibition with a child. Alongside the paintings I have mentioned already, there are also two gloriously child-friendly panels, each showing multiple events from the life of King David. They offer a sort of fifteenth century comic strip, except that the events are fused into one long scene. Pesellino was a master at painting animals. Magnifying glasses are provided to help you search them out. 

 

Pesellino: A Renaissance Master Revealed, The National Gallery, London, until 19 March. 

Article
AI
Attention
Culture
5 min read

Will AI’s attentions amplify or suffocate us?

Keeping attention on the right things has always been a problem.

Mark is a research mathematician who writes on ethics, human identity and the nature of intelligence.

A cute-looking robot with big eyes stares up at the viewer.
Robots - always cuter than AI.
Alex Knight on Unsplash.

Taking inspiration from human attention has made AI vastly more powerful. Can this focus our minds on why attention really matters? 

Artificial intelligence has been developing at a dizzying rate. Chatbots like ChatGPT and Copilot can automate everyday tasks and can effortlessly summarise information. Photorealistic images and videos can be generated from a couple of words and medical AI promises to revolutionise both drug discovery and healthcare. The technology (or at least the hype around it) gives an impression of boundless acceleration. 

So far, 2025 has been the year AI has become a real big-ticket political item. The new Trump administration has promised half a trillion dollars for AI infrastructure and UK prime minister Keir Starmer plans to ‘turbocharge’ AI in the UK. Predictions of our future with this new technology range from doom-laden apocalypse to techno-utopian superabundance. The only certainty is that it will lead to dramatic personal and social change. 

This technological impact feels even more dramatic given the relative simplicity of its components. Huge volumes of text, image and videos are converted into vast arrays of numbers. These grids are then pushed through repeated processes of addition, multiplication and comparison. As more data is fed into this process, the numbers (or weights) in the system are updated and the AI ‘learns’ from the data. With enough data, meaningful relationships between words are internalised and the model becomes capable of generating useful answers to questions. 

So why have these algorithms become so much more powerful over the past few years? One major driver has been to take inspiration from human attention. An ‘attention mechanism’ allows very distant parts of texts or images to be associated together. This means that when processing a passage of conversation in a novel, the system is able to take cues on the mood of the characters from earlier in the chapter. This ability to attend to the broader context of the text has allowed the success of the current wave of ‘large language models’ or ‘generative AI’. In fact, these models with the technical name ‘Transformer’ were developed by removing other features and concentrating only on the attention mechanisms. This was first published in the memorably named ‘Attention is All You Need’ paper written by scientists working at Google in 2017. 

If you’re wondering whether this machine replication of human attention has much to do with the real thing, you might be right to be sceptical. That said, this attention-imitating technology has profound effects on how we attend to the world. On the one hand, it has shown the ability to focus and amplify our attention, but on the other, to distract and suffocate it. 

Attention is a moral act, directed towards care for others.

A radiologist acts with professional care for her patients. Armed with a lifetime of knowledge and expertise, she diligently checks scans for evidence of malignant tumours. Using new AI tools can amplify her expertise and attention. These can automatically detect suspicious patterns in the image including very fine detail that a human eye could miss. These additional pairs of eyes can free her professional attention to other aspects of the scan or other aspects of the job. 

Meanwhile, a government acts with obligations to keep its spending down. It decides to automate welfare claim handling using a “state of the art” AI system. The system flags more claimants as being overpaid than the human employees used to. The politicians and senior bureaucrats congratulate themselves on the system’s efficiency and they resolve to extend it to other types of payments. Meanwhile, hundreds of thousands are being forced to pay non-existent debts. With echoes of the British Post Office Horizon Scandal, the 2017-2020 the Australian Robo-debt scandal was due to flaws in the algorithm used to calculate the debts. To have a properly functioning welfare safety net, there needs to be public scrutiny, and a misplaced deference to machines and algorithms suffocated the attention that was needed.   

These examples illustrate the interplay between AI and our attention, but they also show that human attention has a broader meaning than just being the efficient channelling of information. In both cases, attention is a moral act, directed towards care for others. There are many other ways algorithms interact with our attention – how social media is optimised to keep us scrolling, how chatbots are being touted as a solution to loneliness among the elderly, but also how translation apps help break language barriers. 

Algorithms are not the first thing to get in the way of our attention, and keeping our attention on the right things has always been a problem. One of the best stories about attention and noticing other people is Jesus’ parable of the Good Samaritan. A man lies badly beaten on the side of the road after a robbery. Several respectable people walk past without attending to the man. A stranger stops. His people and the injured man’s people are bitter enemies. Despite this, he generously attends to the wounded stranger. He risks the danger of stopping – perhaps the injured man will attack him? He then tends the man’s wounds and uses his money to pay for an indefinite stay in a hotel. 

This is the true model of attention. Risky, loving “noticing” which is action as much as intellect. A model of attention better than even the best neuroscientist or programmer could come up with, one modelled by God himself. In this story, the stranger, the Good Samaritan, is Jesus, and we all sit wounded and in need of attention. 

But not only this, we are born to imitate the Good Samaritan’s attention to others. Just as we can receive God’s love, we can also attend to the needs of others. This mirrors our relationship to artificial intelligence, just as our AI toys are conduits of our attention, we can be conduits of God’s perfect loving attention. This is what our attention is really for, and if we remember this while being prudent about the dangers of technology, then we might succeed in elevating our attention-inspired tools to make AI an amplifier of real attention. 

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