Worlds within worlds: Outpost (2007) by the artist Anne Hardy. Photograph: Anne Hardy, courtesy of Maureen Paley, London
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Terry Pratchett, science and story telling

The best of all possible worlds.

Terry Pratchett’s first Discworld novel was published in 1983. As a wartime child in the 1940s I was already puzzling over an image of a domed world poised on the backs of three elephants that stood on a monstrous turtle. This discworld had a small temple on top of it, and the clawed feet of the turtle rested on the coils of a huge serpent, which also stretched to encircle the world, with the point of its tail in its mouth. It was reproduced in my favourite book, Asgard and the Gods, a scholarly German work on Norse myths, which my mother had used at Cambridge.

This image, and this book, provoked my earliest thinking about the nature of belief and its relation to storytelling. Where on earth did the idea of the turtle and the elephants come from? Did people really believe in them? These questions were related to the kind of embarrassed pain with which I contemplated the stories of origins I was expected to believe in, the Bible with its heaven and hell, the tale of judgement to come.

Pratchett’s new book, The Science of Discworld IV, co-written with the mathematician Ian Stewart and the biologist Jack Cohen, discusses ideas about origins and endings, cosmology and astrobiology, entropy and genetics. The idea of storytelling is not just an embroidered way of including a tale of the discussion of the “Roundworld” taking place on the Discworld. Human beings are defined as pan narrans, the storytelling ape, who exists in a dimension known as the “narrativium”. We look for causes because we think in linear sequences of words. We look for origins because we arrange our world into narrative strings with beginning, middle and end. Stewart, Cohen and Pratchett set out to puzzle us and make us think differently.

Central to their approach is the distinction made by the physicist and sciencefiction author Gregory Benford between human-centred thinking and universecentred thinking. Human-centred thinking comes naturally to human beings. “In this world-view, rain exists in order to make crops grow and to provide fresh water for us to drink. The sun is there because it warms our bodies.” From human-centred thinking comes the idea of a ruler of the universe, as well as the idea that the earth and the creatures, the sea and the oil and the forests are somehow there for our benefit. Universe-centred thinking, on the other hand, sees human beings as “just one tiny feature of a vast cosmos, most of which does not function on a human scale or take any notice of what we want”. The universecentred thinker must have what Keats called “negative capability” – the capacity to be in uncertainties, mysteries, doubts, without any irritable reaching after fact and reason. This is hard and invigorating.

The writers discuss creation myths – including a number of myths about cosmic turtles and scientific ideas about origins, including the Big Bang. They discuss the evolution of ideas about evolution, recent thoughts about the relation of RNA to DNA and the idea of the curvature of space. They also consider neural networks and decision theory, and the strong and weak anthropic principles – ideas about how the physical universe is uniquely suited to the existence of human beings.

Pratchett and co also explore the psychology of belief and disbelief. They describe one way of coming to conclusions – the brain taking in new evidence, and fitting it to the knowledge and beliefs it already holds. This is what they call “System 1”, and it includes scientific thinkers as well as people with inherited religious beliefs. There are, they say, scientists who “know” that DNA is the most important part of the system, physicists who “know” that the world is moving towards entropy. “System 2”, on the other hand, is steadily analytical and sceptical – “trying, not always successfully, to ignore inbuilt prejudices”. Karl Popper’s system of “critical rationalism” held that a theory could be considered scientific if, and only if, it was capable of falsification. Stewart and Cohen claim that “scientists actively try to disprove the things they would like to be true”. They use the example of a believer in UFOs who sees disbelief in UFOs as another form of belief. “Zero belief in UFOs”, they point out, is not the same as 100 per cent belief in the non-existence of UFOs. “Zero belief is an absence of belief, not an opposed form of belief.” What they aspire towards and desire is “a disbelief system”. This is exhilarating.

I remember being on a platform where various poets and writers discussed the ways in which the arts could figure the world of the scientist. That blunt sceptic Lewis Wolpert, sitting in the audience, rose to inform the assembled artists that we would not understand any of his work were we to find ourselves in his laboratory. Some of us were indignant but I believe he was right. People like me can read what is written by those scientists who try to tell us about neurons, genes, the shape of the brain, the shape of space and time. We can respond to those descriptions but we are responding to stories, at second hand.

One of the most pleasing things about Pratchett, Stewart and Cohen’s book is the way the authors demonstrate that we don’t understand even what we think we understand. I realised, reading their account of the complex relations between RNA and DNA, that I had been guilty of holding a belief. I was very excited in the late 1970s by ideas about the “selfish gene”, and particularly by the points made by John Maynard Smith about the immutable nature of the inherited and eternal germ cell. Now the New Scientist is full of articles about newly discovered “orphan DNA”. Stewart and Cohen write:

Darwin’s tree of life, a beautiful idea that derives from a sketch in The Origin of Species and has become iconic, gets very scrambled around in its roots because of a process called horizontal gene transfer. Bacteria, archaea and viruses swap genes with gay abandon, and they can also insert them into the genomes of higher animals, or cut them out. So a gene in one type of bacterium might have come from another type of bacterium altogether, or from an archaean, or even from an animal or a plant.

The story I believed in has to be modified and rethought. When I read this, I think in a human way with a series of images, in the grammar of a story. I should not be able to recognise any gene, let alone think intelligently about it. Stewart and Cohen are very good at illustrating our incapacity to understand. They do so with images and stories. My favourite is the one they tell to make us think about the difference between complicated chemistry and the “organised complexity” of the ribosome. It is a story about caramel.

Every cook knows that heating sugar with fats, two fairly simple chemical substances, produces caramel . . .  Caramel is enormously complicated on a chemical level. It includes innumerable different molecules, each of which has thousands of atoms. The molecular structure of caramel is far more complicated than most of the molecules you’re using to read this page.

But the complexity of caramel, or other complicated polymers, doesn’t produce organised complexity, as ribosomes do. Wolpert would rightly tell me that I still don’t know anything about the ribosomes. But I am at least able now to think about the problem. And the juxtaposition of caramel and brain is unforgettable. There are delights like this on most pages of this book.

In a chapter entitled “Where did that come from?” we are invited to reflect on how we can’t think about things like the origin of an oak tree, or a child, or even a thunderstorm. They make the reader imagine thinking about clouds, the constituents of the atmosphere, static electricity, physics and physical chemistry. Most of us, they say, “will not have come across one or more phrases such as ‘saturated solution’ or ‘particle carries a tiny electrical charge’. These phrases are themselves simplifications of concepts with many more associations, and more intellectual depth, than anyone can be expected to generate for themselves.” Human beings tend to retreat from uncertainty or difficulty into belief stories, like the American Republican candidate who opposed any regulation of the markets on the grounds that this was “interfering with God’s plan for the American economy”.

Pratchett, Stewart and Cohen use their method of complicating descriptions and explanations to examine several problems with things I have trouble with believing myself, because they feel to me like human stories that tidy up our relation to the universe – the Big Bang, the existence of dark matter, entropy and the “anthropic principle”. They discuss conflicting views of the expanding universe and the steady state and cast doubt on the existence of dark matter. They are not propounding or supporting any particular theory of the shape and origins of the universe, but are rather considering evidence that complicates the explanations we have become used to. They are good at picking out the operations of what they call our “very parochial” minds, which use ideas of space and time that evolved with us. “Our view of the universe may be just as parochial as the world-bearing animals of ancient cultures were. Future scientists may view both the Big Bang and four elephants riding on a turtle as conceptual errors of a very similar kind.”

In Richard Feynman’s The Character of Physical Law, they find a tendency evident in “too many physicists” to consider physical reality to be all of reality. Feynman, they write, states that “the same kind of atoms appear to be in living creatures as in non-living creatures [sic]; frogs are made of the same ‘goup’ as rocks only in different arrangements”. Things in the biological world are the results of the behaviour of physical and chemical phenomena with no “extra something.” Stewart and Cohen agree about the “no extra something” but think that a bleak view of the world of particles and elements misses out the complexity of living things, and the things they make and use and learn from.

Entropy may not be our destiny – they see Feynman rather as Pratchett sees his undifferentiated auditors, who want to tidy everything up into packets of particles. Life, say Stewart and Cohen, has “lifted itself up into a story”. That is a metaphor – and an attractive one. It feels right, and should therefore be regarded with the necessary doubt and suspicion. They also take a mocking run at the idea of “fine-tuning”, the idea that the world has evolved as the only possible world in which humans could exist – just the right amount of carbon and water, and so on.

This “anthropic principle”, in both its strong and its weak forms, has always horrified me because it is so clearly a function of the human mind thinking in a humancentred way. Isn’t it amazing, say the Discworld scientists, that our legs are just long enough to reach the ground? Isn’t it amazing that there was a hole exactly the right size to contain that puddle? And what about a sulphur-centred form of thought?

There was one chapter I found hard to understand – on the curvature of space, round worlds and disc worlds. This was where I wished the book had illustrations – I read pages about the doughnut-shaped torus, and then had the sense to consult Wikipedia, where I could see what was being discussed. And I also needed to see the geometry of the wonderful Escher image of angels and demons.

I have become rather sad about surviving into the anthropocene age of human history, where everything is controlled and constructed by and for what the King of Brobdingnag called “the most pernicious race of little odious vermin that Nature ever suffered to crawl upon the surface of the earth”. But, paradoxically, both Pratchett’s storytelling and the resolutely universecentred perspective of the scientists make me happier to be human. I look forward to the next volume.

“The Science of Discworld IV: Judgement Day” by Terry Pratchett, Ian Stewart and Jack Cohen is published by Ebury Press (£18.99). A S Byatt’s most recent book is “Ragnarok: the End of the Gods” (Canongate, £7.99

Both A S Byatt and Terry Pratchett will be appearing at How the Light Gets In, the festival of philosophy and music in Hay on Wye. For more details, visit:  www.howthelightgetsin.org

This article first appeared in the 12 April 2013 issue of the New Statesman, Centenary Special Issue

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Losing Momentum: how Jeremy Corbyn’s support group ran out of steam

Tom Watson says it is destroying Labour. Its supporters say it is a vital force for change. Our correspondent spent six months following the movement, and asks: what is the truth about Momentum?

1. The Bus

 The bus to the Momentum conference in Liverpool leaves at seven on a Sunday morning in late September from Euston Station, and the whole journey feels like a parody of a neoliberal play about the failings of socialism. We depart an hour late because activists have overslept and we cannot go without them. As we wait we discuss whether Jeremy Corbyn will be re-elected leader of the Labour Party this very day. One man says not; a young, jolly girl with blonde hair cries: “Don’t say that on Jezmas!” She is joking, at least about “Jezmas”.

A man walks up. “Trots?” he says, calmly. He is joking, too; and I wonder if he says it because the idea of Momentum is more exciting to outsiders than the reality, and he knows it; there is an awful pleasure in being misunderstood. Momentum was formed in late 2015 to build on Corbyn’s initial victory in the Labour leadership election, and it is perceived as a ragtag army of placard-waving Trots, newly engaged clicktivists and Corbyn fanatics.

We leave, and learn on the M1 that, in some terrible metaphor, the coach is broken and cannot drive at more than 20mph. So we wait for another coach at a service station slightly beyond Luton. “Sabotage,” says one man. He is joking, too. We get off; another man offers me his vegan bread and we discuss Karl Marx.

A new coach arrives and I listen to the others discuss Jeremy Corbyn’s problems. No one talks about his polling, because that is depressing and unnecessary for their purpose – which, here, is dreaming. They talk about Corbyn as addicts talk about a drug. Nothing can touch him, and nothing is ever his fault. “There are problems with the press office,” says one. “Perhaps he needs better PAs?” says another.

One man thinks there will be a non-specific revolution: “I hope it won’t be violent,” he frets. “There have been violent revolutions in the past.” “I stuck it out during Blair and it was worth it,” says another. “They’ve had their go.” “We don’t need them [the Blairites],” says a third. “If new members come in, it will sort itself out,” says a fourth.

I have heard this before. Momentum supporters have told me that Labour does not need floating voters, who are somehow tainted because they dare to float. This seems to me a kind of madness. I do not know how the Labour Party will win a general election in a parliamentary democracy without floating voters; and I don’t think these people do, either.

But this is a coach of believers. Say you are not sure that Corbyn can win a general election and they scowl at you. That you are in total agreement with them is assumed, because this is the solidarity bus; and if you are in total agreement with them they are the sweetest people in the world.

That is why I do not tell them that I am a journalist. I am afraid to, and this fear baffles me. I have gone everywhere as a journalist but with these, my fellow-travellers on the left, I am scared to say it; and that, too, frightens me. MSM, they might call me – mainstream media. What it really means is: collaborator.

The man beside me has been ill. He talks sweetly about the potential renewal of society under Corbyn’s Labour as a metaphor for his own recovery, and this moves him; he has not been involved in politics until now. I like this man very much, until I mention the Jewish Labour MP Luciana Berger and the anti-Semitism she has suffered from Corbyn supporters and others; and he says, simply, that she has been employed by the state of Israel. He says nothing else about her, as if there were nothing else to say.

We listen to the results of the leadership election on the radio; we should be in Liverpool at the Black-E community centre to celebrate, but the solidarity bus is late. Corbyn thanks his supporters. “You’re welcome, Jeremy,” says a woman in the front row, as if he were on the coach. She nods emphatically, and repeats it to the man who isn’t there: “You’re welcome, Jeremy.”

In Liverpool, some of the passengers sleep on the floor at a community centre. The venue has been hired for that purpose: this is Momentum’s commitment to opening up politics to the non-connected, the previously non-engaged, and the outsiders who will attend their conference in a deconsecrated church, even as the official Labour conference convenes a mile away. But never mind that: this is the one that matters, and it is called The World Transformed.

 

2. The Conference

Later that day, outside the Black-E, a man comes up to me. Are you happy, he asks, which is a normal question here. These are, at least partly, the politics of feelings: we must do feelings, because the Tories, apparently, don’t. I say I’m worried about marginal seats, specifically that Jeremy – he is always Jeremy, the use of his Christian name is a symbol of his goodness, his accessibility and his singularity – cannot win them.

“The polls aren’t his fault,” the man says, “it’s [Labour] people briefing the Tories that he is unelectable.” I do not think it’s that simple but it’s easy to feel like an idiot – or a monster – here, where there is such conviction. As if there is something that only you, the unconvinced, have missed: that Jeremy, given the right light, hat or PA, could lead a socialist revolution in a country where 13 million people watched Downton Abbey.

But the man does say something interesting which I hope is true. “This is not about Jeremy, not really,” he says. “It is about what he represents.” He means Momentum can survive without him.

There is a square hall with trade union banners and a shop that sells Poems for Jeremy Corbyn, as well as a Corbyn-themed colouring book. When I am finally outed as a journalist, and made to wear a vast red badge that says PRESS, I attempt to buy one. “That’s all journalists are interested in,” the proprietor says angrily. That is one of our moral stains, apparently: a disproportionate (and sinister) interest in colouring books.

I go to the Black Lives Matter event. A woman talks about the experience of black students in universities and the impact of austerity on the black community. Another woman tells us that her five-year-old son wishes he was white; we listen while she cries. I go to the feminism meeting and change my mind about the legalisation of prostitution after a woman’s testimony about reporting an assault, and then being assaulted again by a police officer because of her legal status. Then I hear a former miner tell a room how the police nearly killed him on a picket line, and then arrested him.

This, to me, a veteran of party conferences, is extraordinary, although it shouldn’t be, and the fact that I am surprised is shameful. Momentum is full of the kinds of ­people you never see at political events: that is, the people politics is for. Women, members of minority communities (but not Zionist Jews, naturally), the disabled: all are treated with exaggerated courtesy, as if the Black-E had established a mirror world of its choosing, where everything outside is inverted.

When Corbyn arrives he does not orate: he ruminates. “We are not going to cascade poverty from generation to generation,” he says. “We are here to transform society and the world.” I applaud his sentiment; I share it. I just wish I could believe he can deliver it outside, in the other world. So I veer ­between hope and fury; between the certainty that they will achieve nothing but an eternal Conservative government, and the ever-nagging truth that makes me stay: what else is there?

There is a rally on Monday night. Momentum members discuss the “purges” of socialist and communist-leaning members from Labour for comments they made on social media, and whether détente is possible. A nurse asks: “How do we know that ‘wipe the slate clean’ means the same for us as it does for them? How on Earth can we trust the likes of Hilary Benn who dresses himself up in the rhetoric of socialism to justify bombing Syria? The plotters who took the olive branch offered by Jeremy to stab him in the back with another chicken coup?” I am not sure where she is going with that gag, or if it is even a gag.

The next man to speak had been at the Labour party conference earlier in the day; he saw Len McCluskey, John McDonnell and Clive Lewis on the platform. “Don’t be pessimistic, folks,” he cries. “On the floor of conference today we owned the party. Progress [the centrist Labour pressure group] are the weirdos now. We own the party!”

A man from Hammersmith and Fulham Momentum is next. “The national committee of Momentum was not elected by conference,” he says. “It’s a committee meeting knocked up behind closed doors by leading people on the left, including our two heroes.” He means Jeremy Corbyn and John McDonnell. This is explicit heresy, and the chair interrupts him: “Stan, Stan . . .” “I’m winding up!” he says. “We need a central committee of Momentum elected by conference,” he says, and sits down.

The following day Corbyn speaks in the hall in front of golden balloons that spell out S-H-E-E-P. It may be another gag, but who can tell, from his face? This is his commitment to not doing politics the recognisable way. He is the man who walks by himself, towards balloons that say S-H-E-E-P. (They are advertising the band that will follow him. They are called, and dressed as, sheep.) The nobility of it, you could say. Or the idiocy. He mocks the mockers of Momentum: is it, he was asked by the mainstream media, full of extremists and entryists? “I’m not controlling any of it,” he says calmly, and in this calmness is all the Twitter-borne aggression that people complain of when they talk about Momentum, for he enables it with his self-satisfied smile. “It’s not my way to try and control the way people do things. I want people to come together.” He laughs, because no one can touch him, and nothing is ever his fault.

I meet many principled people in Liverpool whose testimony convinces me, and I didn’t need convincing, that austerity is a national disaster. I meet only one person who thinks that Momentum should take over the Labour Party. The maddest suggestion I hear is that all media should be state-controlled so that they won’t be rude about a future Corbyn government and any tribute colouring books.

 

3. The HQ

Momentum HQ is in the TSSA transport and travel union building by Euston Station in London. I meet Jon Lansman, Tony Benn’s former fixer and the founder of Momentum, in a basement room in October. Lansman, who read economics at Cambridge, lived on the fringes of Labour for 30 years before volunteering for Corbyn’s campaign for the leadership.

The terms are these: I can ask whatever I want, but afterwards James Schneider, the 29-year-old national organiser (who has since left to work for Corbyn’s press team), will decide what I can and cannot print. ­Momentum HQ wants control of the message; with all the talk of entryism and infighting reported in the mainstream media, the movement needs it.

There is a civil war between Jon Lansman and the Alliance for Workers’ Liberty (AWL) and other far-left factions, which, I am told, “wish to organise in an outdated manner out of step with the majority of Momentum members”. Some of the Momentum leadership believe that the AWL and its allies want to use Momentum to found a new party to the left of Labour. Jill Mountford, then a member of Momentum’s steering committee, has been expelled from Labour for being a member of the AWL. It screams across the blogs and on Facebook; more parody. We don’t talk about that – Schneider calls it “Kremlinology”. It is a problem, yes, but it is not insurmountable. We talk about the future, and the past.

So, Lansman. I look at him. The right considers him an evil Bennite wizard to be feared and mocked; the far left, a Stalinist, which seems unfair. It must be exhausting. I see a tired, middle-aged man attending perhaps his fifteenth meeting in a day. His hair is unruly. He wears a T-shirt.

The last Labour government, he says, did one thing and said another: “Wanting a liberal immigration policy while talking tough about refugees and migrants. Having a strong welfare policy and generous tax credits while talking about ‘strivers’ and ‘scroungers’ unfortunately shifted opinion the wrong way.”

It also alienated the party membership: “Their approach was based on ensuring that everyone was on-message with high levels of control.” It was an “authoritarian structure even in the PLP [Parliamentary Labour Party]. Even in the cabinet. It killed off the enthusiasm of the membership. They never published the figures in 2009 because it dropped below 100,000. We’ve now got 600,000.” (The membership has since dropped to roughly 528,000.)

And the strategy? “If you have hundreds of thousands of people having millions of conversations with people in communities and workplaces you can change opinion,” he says. “That’s the great advantage of ­having a mass movement. And if we can change the Labour Party’s attitude to its members and see them as a resource – not a threat or inconvenience.”

That, then, is the strategy: street by street and house by house. “We can’t win on the back of only the poorest and only the most disadvantaged,” he says. “We have to win the votes of skilled workers and plenty of middle-class people, too – but they are all suffering from some aspects of Tory misrule.”

I ask about polling because, at the time, a Times/YouGov poll has Labour on 27 per cent to the Tories’ 41 per cent. He doesn’t mind. “It was,” he says, “always going to be a very hard battle to win the next election. I think everyone across the party will privately admit that.” He doesn’t think that if Yvette Cooper or Andy Burnham were leader they would be polling any better.

Upstairs the office is full of activists. They are young, rational and convincing (although, after the Copeland by-election on 23 February, I will wonder if they are only really convincing themselves). They talk about their membership of 20,000, and 150 local groups, and 600,000 Labour Party members, and the breadth of age and background of the volunteers – from teenagers to people in their eighties. One of them – Ray Madron, 84 – paints his hatred of Tony Blair like a portrait in the air. He has a ­marvellously posh voice. Most of all, they talk about the wounds of austerity. Where, they want to know, is the anger? They are searching for it.

Emma Rees, a national organiser, speaks in the calm, precise tones of the schoolteacher she once was. “A lot of people are sick and tired of the status quo, of politics as usual, and I think trying to do things differently is hard because there isn’t a road map and it’s not clear exactly what you’re supposed to do,” she says. She adds: “It is a coalition of different sorts of people and holding all those people together can sometimes be a challenge.”

Is she alluding to entryism? One activist, who asks not to be named, says: “I don’t want to insult anyone, but if you rounded up all the members of the Socialist Workers Party [SWP] and the Socialist Party and any other ultra-left sect, you could probably fit them in one room. Momentum has 20,000 members.”

The SWP were outside at The World Transformed in Liverpool, I say, like an ambivalent picket line. “Well,” James Schneider says pointedly, “they were outside.”

Momentum, Emma Rees says, “is seeking to help the Labour Party become that transformative party that will get into government but doesn’t fall back on that tried and failed way of winning elections”.

They tell me this repeatedly, and it is true: no one knows what will work. “The people who criticised us don’t have any route to electability, either,” says Joe Todd, who organises events for Momentum. He is a tall, bespectacled man with a kindly, open face.

“They lost two elections before Jeremy Corbyn. It’s obvious we need to do something differently,” he says. “Politics feels distant for most people: it doesn’t seem to offer any hope for real change.

“The left has been timid and negative. More and more people are talking about how we can transform society, and how these transformations link to people’s everyday experience. Build a movement like that,” Todd says, and his eyes swell, “and all the old rules of politics – the centre ground, swing constituencies to a certain extent – are blown out of the water.”

Momentum sends me, with a young volunteer as chaperone, to a rally in Chester in October to watch activists try to muster support for local hospitals. They set up a stall in the centre of the shopping district, with its mad dissonance of coffee shops and medieval houses. From what I can see, people – yet far too few people – listen politely to the speeches about austerity and sign up for more information; but I can hear the hum of internal dissent when an activist, who asks not to be named, tells me he will work for the local Labour MP to be deselected. (The official Momentum line on deselection is, quite rightly, that it is a matter for local parties.)

We will not know what matters – is it effective? – until the general election, because no one knows what will work.

 

4. The Fallout

Now comes the result of the by-election in Copeland in the north-west of England, and the first time since 1982 that a ruling government has taken a seat from the opposition in a by-election. Momentum canvassed enthusiastically (they sent 85 carloads of activists to the constituency) but they failed, and pronounce themselves “devastated”. The whispers – this time of a “soft” coup against Corbyn – begin again.

Rees describes calls for Jeremy Corbyn to resign as “misguided. Labour’s decline long pre-dates Corbyn’s leadership.”

This produces a furious response from Luke Akehurst, a former London Labour ­councillor in Hackney, on labourlist.org. He insists that Labour’s decline has accelerated under Corbyn; that even though Rees says that “Labour has been haemorrhaging votes in election after election in Copeland since 1997”, the majority increased in 2005 and the number of votes rose in 2010, despite an adverse boundary change. “This,” he writes, “was a seat where the Labour vote was remarkably stable at between 16,750 and 19,699 in every general election between 2001 and 2015, then fell off a cliff to 11,601, a third of it going AWOL, last Thursday.”

And he adds that “‘85 carloads of Mom­entum activists’ going to Copeland is just increasing the party’s ability to record whose votes it has lost”.

But still they plan, and believe, even if no one knows what will work; surely there is some antidote to Mayism, if they search every street in the UK? Momentum’s national conference, which was repeatedly postponed, is now definitively scheduled for 25 March. Stan who complained about a democratic deficit within Momentum at The World Transformed got his way. So did Lansman. In January the steering committee voted to dissolve Momentum’s structures and introduce a constitution, after consulting the membership. A new national co-ordinating group has been elected, and met for the first time on 11 March – although, inevitably, a group called Momentum Grassroots held a rival meeting that very day.

I go to the Euston offices for a final briefing. There, two young women – Sophie and Georgie, and that will make those who think in parodies laugh – tell me that, in future, only members of the Labour Party will be allowed to join Momentum, and existing members must join Labour by 1 July. Those expelled from Labour “may be deemed to have resigned from Momentum after 1 July” – but they will have a right to a hearing.

More details of the plan are exposed when, a week later, a recording of Jon Lansman’s speech to a Momentum meeting in Richmond on 1 March is leaked to the Observer. Lansman told the Richmond branch that Momentum members must hold positions within the Labour Party to ensure that Corbyn’s successor – they are now talking about a successor – is to their liking. He also said that, should Len McCluskey be re-elected as general secretary of Unite, the union would formally affiliate to Momentum.

Tom Watson, the deputy leader of the party, was furious when he found out, calling it “a private agreement to fund a political faction that is apparently planning to take control of the Labour Party, as well as organise in the GMB and Unison”.

There was then, I am told, “a short but stormy discussion at the away day at Unison” on Monday 20 March, where the inner circle of John McDonnell, Diane Abbott and Emily Thornberry “laid into” Watson, but Shami Chakrabarti made the peace; I would have liked to see that. Watson then released a bland joint statement with Corbyn which mentioned “a robust and constructive discussion about the challenges and opportunities ahead”.

Jon Lansman, of course, is more interesting. “This is a non-story,” he tells me. “Momentum is encouraging members to get active in the party, to support socialist policies and rule changes that would make Labour a more grass-roots and democratic party, and to campaign for Labour victories. There is nothing scandalous and sinister about that.” On the Labour right, Progress, he notes, does exactly the same thing. “Half a million members could be the key to our success,” he says. “They can take our message to millions. But they want to shape policy, too. I wouldn’t call giving them a greater say ‘taking over the party’” – and this is surely unanswerable – “it’s theirs to start with.”

Correction: This article originally named Luke Akehurst as a Labour councillor. Akehurst stood down in 2014.

This article first appeared in the 23 March 2017 issue of the New Statesman, Trump's permanent revolution