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Life & Death
4 min read

A Bayesian theory of death

The sinking of the superyacht displays the probability, and banality, of death.

George is a visiting fellow at the London School of Economics and an Anglican priest.

Rescue workers look at the plan of a yacht.
The search for the Bayesian.
Vigili del Fuoco.

On any statistical calculation, the probability of dying by drowning when your luxury yacht suddenly and inexplicably sinks at anchor in the Mediterranean has to be extremely low. 

So it’s the cruellest of ironies that tech tycoon Mike Lynch should so die, along with his daughter and five others, having devoted his commercial life to the application of such statistical probabilities. He had named his yacht Bayesian after the 18th-century theorem that introduced the idea that probability expresses a degree of belief in an event. 

That doesn’t expressly mean religious belief. But, intriguingly, it doesn’t exclude it either. According to Thomas Bayes, who published his theorem in 1763, the calculable degree of belief may be based on prior knowledge about an event, such as the results of previous experiments, or on personal beliefs about it. 

In essence, you don’t believe your yacht will capsize in the night and sink in seconds, because your experience tells you so. That belief can mathematically be included in the probability of it happening. 

We can transfer the method into religious praxis. Christian belief in the event of resurrection, for instance, can be calculated in the probability that the deaths of the Lynches and others aboard the Bayesian are not the end of their existence. 

It’s an intriguing legacy of Lynch’s work for theologians. But it’s the sheer lack of probability of the lethal event occurring at all that lends it its random banality. It’s that death visited those asleep on a yacht in the small hours that lends this news story such tireless legs, not just that these were super-rich masters and mistresses of the universe. 

There have been bitter observations on social media that the Bayesian’s victims have commanded limitlessly greater attention than the many thousands of refugees who die in small-boat crossings of the Mediterranean every year.  

This is a category mistake. And again, Bayesian theory can be deployed. Experience supports our belief that crossing the sea in overcrowded and unseaworthy vessels can all too often lead to tragically terminal events. The probability of death is plain. Again, it’s the sheer randomness of the Bayesian yacht event that sets it apart. 

If death can visit at any time, there can be no difference in the valuation of long or short lives. 

That randomness brings us back to the banality of sudden death among us, almost its ordinariness, something that just happens, often entirely out of the blue. The prayer book has the funeral words “in the midst of life we are in death”, meaning that death is our constant living companion. But that doesn’t quite cut it for me, because it tells us it’s there, but nothing of its true significance. 

The tenets of Christian faith are regularly said to be those of a death cult; that it’s a deep-seated fear of death that leads us to avoid it with assurances of eternal life. But it’s the sheer banality of death, as displayed in the randomness of the Bayesian event, that seems to knock down that idea. In its randomness, death looks ridiculous rather than evil. 

Conspiracy theories around the sinking of the Bayesian are a kind of denial of the reality of death too. We want there to be more to it than the utterly banal.

Author Hannah Arendt coined the phrase “the banality of evil” when covering the trial of Nazi holocaust architect Adolf Eichmann in Jerusalem. I’d want to suggest that it’s that same banality, that basic human ordinariness, that is the real nature of the supposed grim reaper, rather than his evil.   

None of this can comfort the Lynch family, who mourn the loss of a much-loved father and his young daughter, or the families of the others who lost their lives on the Bayesian. But it is meant to go some way towards an explanation of what we mean in Christian theology when we bandy about phrases such as “the defeat of death”. Because it’s not a wicked serpent that’s been defeated, more of a pointless clown. 

There is something especially painful about the death of the young, such as that of 18-year-old Hannah Lynch on the Bayesian that night, a young woman on the threshold of life. And – God knows – the even younger lives we’ve read about being taken lately. 

But the concept of banality may lead us to another tenet of faith: The completeness of every life. If death can visit at any time, there can be no difference in the valuation of long or short lives.  

A poem, often ascribed to a former dean of St Paul’s cathedral, begins with the line: “Death is nothing at all.” That’s wrong, as an idea. Death is as significant an event as birth. But its defeat is in keeping it in its place. 

The dignity in simplicity with which football manager Sven-Göran Eriksson greeted his final illness is a masterclass in this tactic for life. Death isn’t to be negotiated, it’s just there. 

In the end, death isn’t a Bayesian probability, it’s a certainty, for all of us. The difference, in Bayesian theory, must be the belief we bring to our personal calculations of the probability of the event.   

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Politics
5 min read

What the Joe Biden story tells us about growing older

Rather than mimicking the young, the elderly witness to a life well lived.

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

Joe Biden holds a fist to his chest as he stands and speaks.
Biden at the CNN presidential debate.

President Biden has had a few bad days at the office recently. Time and again, he seems to freeze in public, stumbles over his words, as his voice falters and his sentences tail off. At his first public debate with Donald Trump, he looked just like a man in his eighties, struggling to remember facts, his mind not as alert as it once was. Which, come to think of it, is exactly what many people in their eighties are. And Trump is no spring chicken either. Questions around age dominate the American Presidential election like never before. This is a story of not of two elderly gents in a bar arguing over their fading memories of the past, but between candidates wanting to be the most powerful man, in charge of the most forbidding military and economic powers on the planet. 

Old age creeps up on us slowly. To tell when it starts is hard to say. Yet we all know how it ends. Old age is a kind of preparation for death, a slowing down of faculties, a loss of control, a gradual diminishing of powers, preparing us for a new kind of life beyond this one. As a result, in our achievement-oriented age that doesn't believe in a life beyond death, we are tempted to ignore the elderly, shutting them away in residential homes, out of sight and out of mind.

Yet they were valued for what they were – signs of where we are all heading, their stories as object lessons for the young in how to live well (or badly). 

Old age, however, is not a slide into passivity. Even as powers diminish, elderly people still have significant agency – keeping the mind active through reading, walking to the shop to buy bread, keeping in touch with relatives, even getting out of a chair as the end draws near can take as much resolve and determination as the more complex tasks of our youth, and are every bit as heroic and human as the more impressive achievements of our sprightlier years.  

Former cultures respected the elderly for the experience gained, as members of the community to be looked up to, respected and valued. Teenagers were not considered as the moral arbiters of the future but as immature human beings who still have a lot to learn. The old were given pride of place as those who had gained the wisdom of years. Not that that wisdom was always apparent - the elderly can become cantankerous, repetitive and self-focused as powers diminish. Yet they were valued for what they were – signs of where we are all heading, their stories as object lessons for the young in how to live well (or badly).  

The one time when we do place elderly people front and centre, is when they are able to do the things that young people can. Adverts regularly depict old people jumping out of planes, playing rugby, strumming electric guitars - doing the things that young people typically do. Old people who can pretend that they are young are praised to the hilt. Elderly people who lose their memory, their train of thought, stumble and repeat themselves are looked on with pity, not respect. When they do both it confuses us – which is why everyone is worried about Joe.  

Part of the wisdom of old age is to recognise when it has come upon us, and what its distinct calling is. In a strange echo of our culture's attitude to the elderly, Joe Biden seems desperate to tell himself and others that he's perfectly capable of doing the job of President, a job that would come much more naturally to someone 20 years younger than him. Surely the wiser and more sensible course would have been to recognise the signs of time, and halfway through his presidency, to have announced that he was not standing again, triggering a leadership race among the Democratic Party so that a new candidate could be ready for the Presidential election without all the doubts about age and capacity in mind. 

So, caught between ignoring old age and yearning for lost youth, how then, are we to value the ageing process? After all, one day, it will come on all of us who manage to avoid a premature death.  

The main task as the years pass and the shadows lengthen, is to be there for the young,

If we remain active throughout our lives, that activity changes over time. As someone well into my sixties, approaching old age (or perhaps already in it – it is hard to tell?) I recognise my body creaks and does not adapt as it once did. I can't do all that I could in my 30s or 40s. Over time, callings change, and recognising that is part of the wisdom of life. The Christian ethicist Oliver O'Donovan suggests that the calling of old age is to "stand by the side of youth." Elderly people have the task "to show to the young how their generation, the only earlier generation to which the young have direct access, has conceived its tasks and tackled them. If the young are to form their world effectively, they will need models to inherit and to build on."  

The prime task of old age is not to withdraw into some retirement village, playing golf every day, going on endless holidays, living the life we wanted to live in our 40s but couldn't because we had to work. It is not to enjoy retirement as a kind of secular heaven, a reward for a lifetime of hard work, with pleasures abounding. There may be time for some of that, but the main task as the years pass and the shadows lengthen, is to be there for the young, not to tell them what to do but to be a witness of a life well lived - or sometimes an object lesson of a life lived badly – often both at the same time. It is to be a sign of how another generation managed to navigate the complications and complexities of life and how for those who have a faith, as a witness to how God has proved faithful over time, space and the shifting sands of culture. And that involves focus from both sides. The younger need to value, respect and prize the elderly for what they offer as a model of life lived and complexity negotiated, and the old need to recognise their changing role as it creeps upon them with the passing of years. 

The calling of the elderly is just as important as that of the young or even the middle-aged. Yet it is different. We need to value our older people, not because they can do the things younger people can, but because they are object lessons in how to navigate life, and how to prepare for the next one.  

Getting it muddled up helps no one.