Nuclear war is not only fabulous because one can only talk about it, but because the extraordinary sophistication of its technologies coexists, cooperates in an essential way with sophistry, psycho-rhetoric, and the most cursory, the most archaic, the most crudely opinionated psychagogy, the most vulgar psychology.

Jacques Derrida, No Apocalypse, Not Now (Full Speed Ahead, Seven Missiles, Seven Missives)

Imagine if a politician openly promised, during a campaign, that they would be willing to burn people alive. They come to knock on your door, bright and smiling in a freshly crinkled rosette: unlike my opponent, who doesn’t care about your security and the security of your family, I will personally subject someone to sixty million-degree heat, so that their fat melts and their bones are charred and their eyeballs burst and their bodies crumble into toxic dust. I will torture other people by burning their skin, I will torch their flesh away and leave them with open wounds bubbling with disease. They will die slowly. I will poison others; their organs will fail and they will shit out their guts in agony. I will do this to people who have done nothing wrong, to families, to children, to their pets; one by one, I will burn them to death. For you. For your security.

This is what the bomb did to Hiroshima. This is utter barbarism. Even saying that you would do it is utter barbarism. Of course, the nuclear deterrent only works if you say that you’re prepared to use it – which just demonstrates that we shouldn’t have it, that the whole logical structure of nuclear deterrence is abominable. Any tool whose mere existence forces you to say the unspeakable is not worth having; a hammer that causes you to make death threats is not fit for purpose. Anyone who threatens the world with blinding destruction in unspecified circumstances is simply not responsible enough to hold power. There is no situation in which the use of these weapons is ever justified – never, not in the most tortured hypotheticals of an undergraduate ethics seminar, not in the most Boschian secondary worlds inhabited by right-wing fantasists. If a nuclear attack on Britain has already been launched, retaliation will save nobody; it would just be the final act of spite in a long spiteful history. Nobody would accept a politician who threatened from the podium on live TV to personally burn one person to death, so why should we accept the idea of burning millions?

But what’s strange about the moral case against nuclear weapons – they cause horrendous suffering, must never be used, and should not exist – is that it doesn’t work.

We saw this on Friday night’s Question Time debate, as a parade of questioners took Labour leader Jeremy Corbyn to task over his refusal to say that he would ‘push the button’ and initiate an attack. Theresa May has said that she would press the button in a first strike; Owen Smith, during the last leadership contest, said the same thing. This seems to be a fairly popular decision; the thoughtless destruction of everything that exists plays well with the British public. More than that: it’s demanded; according to the eldritch nostrums that structure British political life, if you’re not willing to promise horrendous genocide with the breezy psychopathy of some ancient khagan drinking from the skulls of his enemies, you can’t be trusted to keep us safe. The appetite for murder is incalculable. After Corbyn ruled out a first strike, one member of the public – red-faced, ageing, some sad retired insurance salesman comforting himself in his flabby decline with thoughts of the fiery extermination of humanity – demanded to know if he’d use Trident as a second strike: the British people demand death from beyond the grave; he’d die gladly if he knew that a few million innocent Iranians or Koreans went too.

It’s striking how sharply the inhuman vastness of nuclear war contrasts with the pettiness and finitude and awfulness of the people who demand it. The first question on nuclear weapons came from one Adam Murgatroyd, who looks exactly how you’d expect, some simpering Tory ponce with his slicked-back hair and his practised raise of an eyebrow. ‘It’s disconcerting,’ he later told the press, ‘that we could potentially in six days’ time have a prime minister who wouldn’t be prepared to protect British lives over someone else’s life.’ Imagine the air poisoned, the soil dying, the biosphere eradicated, the grand flailing tragedy of humanity and its aspirations put to an abrupt stop, the families huddling their loved ones close as the shock wave hits, knowing they’re about to die – and all because some limp umbrella of a man wanted a leader who’d make the right kind of nationalistic hoots about defence. Now I am become Adam from the BBC studio audience, destroyer of worlds.

We should consider the questions of the atomic age in fear and trembling. Instead we get the blearing idiocy of common sense, always pointing us to the wrong and most monstrous answer. The process of thinking about the red button has become as automatic as the button itself.

Nuclear war is unthinkable, in the most literal sense. It has no end and no interpretation; it is invisible, ungraspable, unconscionable. There is a significant cultural industry dedicated to depicting nuclear war precisely because it’s impossible, because we’re trying to find ways to depict a looming absence of everything, a nothing that can never be depicted. (This is why Derrida considers the real literature of the nuclear age to not be works that directly imagine a post-apocalyptic future, but the texts of Kafka, Mallarmé, and Joyce – the writing that comes closest to touching its own finitude and destructibility.) The death drive, Kristeva writes, is not represented in the unconscious, because the unconscious can not admit negation – only, as Freud puts it, ‘contents, cathected with greater or lesser strength.’ Instead, Kristeva writes, there is a ‘hiatus, spacing, or blank that constitutes death for the unconscious.’ Death is in the cadence of the psyche, the pause that gives regularity and reason to its articulation, the silence against which it expresses itself. Nuclear war is the death of politics and administration, the emptiness in which politics speaks. This is why petty, stupid bureaucrats, small people with small concerns, who mostly fuss about which type of coffee plays best with the focus-group voters, have to occasionally declare that they would take on the titanic task of wiping out all of human history. They have to announce their fidelity to the interior non-substance of our political discourse, which is the death of every living thing. Then they’re allowed to go on and talk about parking spaces and healthy eating and cutting taxes and aspiration. Everything is in its unplace, all policy is properly situated at ground zero, where the bombs will fall.

This silence is not pure unsignifying madness: it’s the final home of rationality. The sense in which we talk about reason – pure objectivity, emotionlessness, abstract numerical calculation, a kind of ratio that would have seemed very strange to, for instance, the medieval Europeans who helped first define it – is a product of the nuclear age. It’s well known that game theory, in which human decisions are modelled according to the assumption that everyone is a calculating and atomised individual who only wants to maximise their utility – was first taken up as a praxis to model the Cold War nuclear standoff, and was only then applied to all areas of social and economic life. But the most basic relay mechanisms of nuclear weapons by themselves enforce a post-politics. Paul Virilio notes that, as the warning times for a nuclear attack and a possible counter-attack shrunk from fifteen minutes to ten minutes to one, the effect was that of ‘finally abolishing the Head of state’s power of reflection and decision in favour of a pure and simple automation of defence systems… After having been the equivalent of total war the war machine suddenly becomes the very decision for war.‘ Somewhere, various sets of computer systems analyse the likelihood of an unprovoked strike and try to pre-empt it; when the end comes, it won’t be for explicable political goals, but out of a pure uninflected machine-reason, and none of us will ever know why. Reason and madness lose their distinction here. See Nixon, the shit Hamlet with his ‘madman doctrine,’ threatening to unleash the powers of apocalyptic calculation; see the tortured but valid syllogisms by which every democratic British leader has to make gruesome threats against the world. This is the ground of politics as administration and necessity and the root of the technocratic age. Once the life and death of every living thing can become a matter of calculation without ideology or ethics, so is everything else. People can starve to death in empty flats because there’s no magic money tree; thousands can drown on the Mediterranean because we don’t have the resources to take in any more. It’s common sense. Common sense in the twenty-first century is always common sense from the point of view of an atomic bomb.

Just like austerity or the massacre-by-inaction on Europe’s waters, the logic of nuclear weapons is not some pre-Kantian pure reason without a social or epistemological substrate. Nuclear weapons are, first of all, weapons in the class struggle. The greatest vector for socialism has always been war – in war, the ruling classes arm and mobilise the proletariat, tell them that they have the power to build the fate of nations, and then send them off to die; it’s only a matter of time before these workers decide that this power could be put to better use, and the people taking the most principled stand against these senseless wars have always been Communists. War between the powers became too great a threat to power itself. Nuclear weapons abolish this: abstract mobilisation, the disappearance of territory, the omnipresence of the front. Working classes win by striating and reinterpreting space – building barricades, occupying squares, cutting off the flows of production and exchange at crucial points – and under the global sovereignty of the bomb there is no such thing as space. Instead, our role is simply to die, in endless billions. But it all makes sense; every step is perfectly rational. It’s a death you can trust, to keep you and your family safe.