Another day, another triumph of the technocratic faith. We are now told, with the breathless enthusiasm of a Victorian missionary converting the heathen, that the future of medicine is ‘personalised’. Your DNA, we are assured, will soon be the scribe of your prescriptions, a kind of biological soothsayer whispering which pills will cure you and which will finish the job the Grim Reaper started.

Let us dispense with the usual platitudes. That we have sequenced the human genome and can now target therapies to specific mutations is, on its face, a marvel. But to frame this as a simple boon for humanity is to ignore the decadent spirit of our age. We are so in love with the idea of technological mastery that we forget it comes with a price. In this case, the price is the final atomisation of the patient.

The old model of medicine, imperfect though it was, still held a certain civic virtue. You went to a doctor, he examined you, and you trusted his judgement. He was a gatekeeper. He was also, in some sense, a moral authority. Now, we are told, we will have ‘N of 1’ trials. Each man his own laboratory. Each disease a unique code to be cracked. This sounds liberating, but it is in fact the logical endpoint of a society that has lost all sense of common standards. We no longer have a shared notion of health, any more than we have a shared notion of truth. We have, instead, a thousand little truths, each calibrated to a thousand little genomes.

Consider the implications for the very concept of risk. If my genes reveal I am 40 per cent more likely to develop a certain cancer, what then? Am I sick? Am I well? We have created a new class of the ‘worried well’, people who are pathologised by their own DNA. We have turned every minor polymorphism into a sword of Damocles. The anxiety this generates is itself a public health crisis, but one that the apostles of personalised medicine conveniently ignore because it cannot be captured in a spreadsheet.

And what of the cost? The promise is that targeted therapies will save money by avoiding ineffective treatments. This is the fantasy of all central planners from the Progressive Era to the present: that efficiency will solve all problems. But the reality is that these treatments are eye-wateringly expensive. They create a two-tier system: one for the wealthy who can afford the bespoke cure and one for the plebs who must make do with the off-the-shelf treatment. We are already seeing this in oncology, where gene therapies cost hundreds of thousands of pounds. The rhetoric of ‘personalisation’ conceals a grim economic calculus: if you have rare mutations, your life might be too expensive to save.

But let us go deeper. The push for personalised medicine is not merely a medical development; it is a cultural and political one. It fits neatly with the reigning orthodoxy of identity politics. Just as we are told we must be ‘affirmed’ in our racial, sexual, and gender identities, so too must we be affirmed in our genetic identity. The genome becomes the ultimate locus of the self. ‘My genes, my medicine, my truth’. This is the narcissism of the genomic age. We have traded a shared humanity for a bundle of biomarkers.

The Victorians, for all their faults, had a sense of the universal. A fever was a fever. A broken leg was a broken leg. They did not ask whether the leg was ‘white’ or ‘black’ or ‘non-binary’ in its breakage. They set it and moved on. We, by contrast, have made a fetish of difference. We are so terrified of imposing a one-size-fits-all standard that we have abandoned any standard at all. Personalised medicine is the apotheosis of this tendency. It is medicine as a boutique service, tailored to the precious snowflake that is you.

None of this is to say that genomic medicine has no value. It does. But we would do well to remember that every technological advance brings with it a moral hazard. The hazard here is that we lose sight of the patient as a person and see only a sequence of base pairs. The hazard is that we replace the art of medicine with an algorithm. The hazard is that we become, in the name of personalisation, more alone than ever.

So by all means, sequence your genome. But do not think that it will save you. It will only tell you what you already know: that you are mortal, flawed, and desperately in need of something that no prescription can provide.