Article
Comment
Conspiracy theory
Death & life
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.   

Article
Character
Comment
Friendship
Virtues
4 min read

As algorithms divide us, who should we be loyal to?

An ethicist’s answer, shows we need courage and wisdom too.

Isaac is a PhD candidate in Theology at Durham University and preparing for priesthood in the Church of England.

Three people sitting looking out over viewpoint are silhouetted against the sky.
Priscilla Du Preez on Unsplash.

What is loyalty? As we plunge into this new year of 2025 it seems as pressing a question as ever. The war in Ukraine rumbles on, a fresh Labour government continues to struggle with public opinion, and America returns to the unpredictable rule of the first president in its history to be a convicted felon. The algorithms of social media continue to segregate and amplify different audiences into ever more closed feedback loops and echo chambers. This may bolster loyalty to a point of view, but estrange us further from our friends and neighbours whose loyalties lie elsewhere. All of these and many other cases highlight the conflict of loyalties in our society and wider world. What is even more obvious is that if we are to make peace, cultivate love for enemies, and pursue the common good, then perhaps the most in-demand virtue of 2025, at the top over every wish list, might just be loyalty.  

But what really is loyalty?  

I was struck by a persuasive answer given by Dr Tony Milligan, research fellow in philosophical ethics at King’s College London, during his appearance on a recent episode of The Moral Maze on BBC Radio 4 that asked ‘is loyalty a virtue or a vice?’ He said loyalty is, “Sharing another person’s commitments and the willingness to go through various kinds of adversity in order to pursue those commitments and to further them.” Under cross examination and asked if loyalty is then an absolute virtue he responded, “I think that it’s absolute in the sense that we absolutely need to have it, that it’s basic to the human condition and not optional.” His second interrogator, Giles Fraser, then suggested a ‘high doctrine of mates’. In this doctrine you are loyal to your mates in all circumstances, even if they are ‘wrong-uns’. Dr Milligan’s response, when asked how he would characterise this ‘doctrine of mates’ position, was fascinating: “Addiction.” Fraser then asked if that addiction could be love. “It’s a case of love, and we don’t get to choose the people that we love. We find ourselves in the predicament and then try to make the best of it…I love my wife Susanne, I’ve been with her 31 years, and it’s love, and it’s also addiction. I just can’t envisage a world in which I would be without her.” This framed Dr Milligan’s final powerful point: love, and the loyalty which love entails, gives us our sense of value.  

I can bear witness to the truth of Dr Milligan’s intertwining of love and loyalty. Last autumn I became a father for the second time. My love for my eldest is so great that there was a real question: ‘if my love for my eldest is so total, so all encompassing, how can I possibly love a second as much?’ This question melted away as I gazed into her screwed-up face, moments after she entered the world. I am completely dedicated to ensuring that she flourishes and I would “go through various kinds of adversity in order to pursue” her flourishing. As Dr Mulligan also said, loyalty “is basic to the human condition and not optional.” Of course, how this total and non-zero-sum loyalty of love to both of my children actually works in practice requires of me thoughtful negotiation. If one wants to go to the park and the other wants to go to the swimming pool I cannot split in two and do both things at once. Loyalty, as finite human beings, requires wisdom in living in the middle of a messy network of demands and desires, of the preferences and needs of others. 

If loyalty is then one thing, it is the willingness to recognise that we are tied to other people, whether we like it or not. Cain’s question to God, when God came looking for Abel, is still pertinent: “Am I my brother’s keeper?” Perhaps the greatest disloyalty is the implied ‘no’ in Cain’s rhetorical question. In denying that he is bound to his brother he is disloyal not only to Abel, but to himself because he denies his own humanity and isolates himself from the humanity of other people. If we isolate ourselves, having loyalty only to ourselves, we lose the joy of being fully human. If we simply kill those we dislike, whether literally (in war or murder) or metaphorically (‘unfriending’, cancelling, pretending they do not exist), then we follow Cain. Loyalty, as the tie that binds us to the messiness of the real world where people vehemently disagree all the time, requires not only wisdom then but courage also. It takes courage to commit to one person in marriage. It takes courage to raise a child. It takes courage to continue to talk with and to love those with whom you deeply disagree.  

When practising our 2025 New Year’s resolutions let us make sure that amongst the commitments to get back to the gym and practice that new hobby that we remember to practice loyalty. Loyalty not only to those we love, but to those we might come to love. Let us be wise enough and brave enough to be fettered to those with whom we disagree, loyal to the humanity that binds us together.

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