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Art
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Space
5 min read

How black holes illuminate love’s greatest story

The universe’s darkest mysteries hold strange parallels with Christ’s Passion

Jake is a former BBC journalist turned writer and speaker about art and faith.

A spital galaxy coloured red, white and black.
A composite image of Andromeda galaxy.
NASA/JPL, Public domain, via Wikimedia Commons.

Thanks to the BBC radio show In Our Time, I’ve found a new pleasure in life. It is this: to learn about the enormity of outer space, and the absurdity of what goes on there, and to share what I find with anyone who’s interested. By ‘anyone’, I mean my wife. But now that Seen & Unseen have published this, I mean you too. 

Or that mysterious cosmic rays from deep space regularly sail straight through the bodies of each of us, and scientists are baffled as to what might have created them? Did you know that a tiny, pale area of the night sky once named the ‘little smudge’, is now known to be the biggest thing anyone will ever see with the naked eye: the Andromeda galaxy? And did you know that the strength of gravity on Venus would crush you instantly? I could go on indefinitely. 

The centrepiece of all this galactic trivia, however, is reserved for black holes. Almost everything about them fascinates, baffles and scares me.  

Black holes are the remnants of dead stars that have collapsed in on themselves, creating a gravitational field so powerful that nothing – not even light – can escape. If you were to pass over its threshold, you’d be obliterated as you get pulled towards the black hole’s infinitely dense centre.  

They get even stranger though. Inside them, astrophysicists say, the laws of physics break down completely. Time and space somehow swap places, they say. And even though anything pulled in by a black hole's gravity is crushed by unimaginable force, in some sense it may be preserved and – in theory – might end up elsewhere, in a new form. It is a death that might not in fact be the end of us. 

There are many black holes – there’s one at the centre of our galaxy. But even though we can study them and develop scientific theories about them, we have not come close to grasping them in all their terrifying and monumental glory. What goes on inside them is, and perhaps always will be, an unfathomable mystery. 

This is why I’d love to see them refracted through the eyes and hearts of poets and artists, philosophers and theologians. What might their strangeness tell us about their creation, their creator? What might they tell us about how to live our lives? And if gravity at its most intense can upturn the laws of science, bamboozle great minds, and maybe even turn death into new life, then might other forces of attraction that do not adhere to known laws of physics, like love, do the same?  

Scenes from the Passion of Christ by Hans Memling.

A painting of a medieval cityscape.
Hans Memling, Public domain, via Wikimedia Commons

In dwelling on questions like these, I have found this painting to be strangely helpful. It tells a love story that – in terms of its sheer intensity, its pull upon us, its utter strangeness, its death-defying endpoint – is not a bad match for a black hole. It’s called Scenes From The Passion Of Christ, it’s by the northern European painter Hans Memling, and when I first saw it I thought it looked silly.  

Why cram onto one small canvas over twenty scenes from the final eight days of Jesus’s life on Earth? It’s like a cartoon strip without the white lines to divide up each scene. We see Jesus welcomed by a crowd, betrayed by Judas, denied by Peter, sentenced by Pilate, stripped by henchmen, humiliated by another crowd, crucified by soldiers, and buried by loved ones. We see him upending a table, praying for an escape route, sharing bread and wine, carrying a cross, emerging from the grave, and appearing to his followers.  

It reduces the crucifixion to a few square millimetres at the top. It sidelines the heart of Jesus’ story – the resurrection – to the far right edge. It shrinks Jerusalem to a tiny labyrinth resembling an MC Escher painting. It is daytime and nighttime. It is disorientating. And it is claustrophobic. But I think it is also brilliant, and it’s made me look in a new way at the strangest of weeks in the story of the world.  

By showing us so much convening at this moment in space and time, we sense how impossible it would have been for Jesus’s followers to compute anything that went on during that week. As each event unfolded, they would have had to rethink what might come next, whilst dealing with some pretty overwhelming emotions. They would have had no time or space to process any of it. It seems perfect, therefore, that in this painting, we don’t either.  

But as I look at it now, I wonder: have we actually processed these events, two thousand years later? Do Christianity’s attempts to explain everything that went on here really do justice to a story in which divine love does some of the unfathomably strange things that a black hole does? Or do these explanations tell us more about our own way of thinking than they do God’s?  

I think there is a tendency – which I see in myself and in most churches I have attended – to resist the weird, mysterious and inexplicable nature of this story. We draw heavily on logic and evidence to try and explain a story that defies both. But just as it is within the boundaries of a black hole, so it is within the frame of this painting: the old rules no longer apply. Divine love manifests itself in ways we cannot yet fathom. Pretending otherwise saps power from the story.   

At the top right corner of the painting, there is a tiny dot on the seashore. It’s the last image of Jesus in this painting. And next to it, a church. Here, the baton is being handed over from Jesus to those who follow him. The church is now the ‘body of Christ’, tasked with embodying infinite love in a world that badly needs it.  

What a daunting task. Frankly, it can be easier to believe in a bizarre series of events from two millennia ago, than in a church here and now, comprised of people as flawed as I am, that is meant to be capable of embodying a world-changing love.  

And that is why I am so drawn to black holes, and to this painting. In them, I see that impossible things can and do happen; that unfathomable mysteries are littered throughout reality; that these mysteries are not so much problems to solve as they are wonders to revel in; that the narrow, rational mindset in which I too often dwell is small and limiting; and that an overwhelming force of attraction can and will overpower anything in its way. 

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Explainer
AI
Belief
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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.