"Far too nice to be a journalist": Terry Pratchett. Lead writer, Flagship. Semafor. chiversthomas(a)gmail. Third book, Everything is Predictable, out now!

Joined January 2009
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A small announcement: my next book, Everything is Predictable, about how Bayes' theorem is the most important little equation in the world, is out in April and will look like this! If you'd like to pre-order, you can do so here geni.us/EIPBook and I will be very grateful
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When I see things like this it just makes me think people have no idea how bad smoking is
Replying to @LukeTryl
In fact far from finding the comparisons with smoking hyperbolic 62% of Brits think that the level of social media use is as bad as smoking.
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it's like people WANT smokers to die. The story: people who quit cold turkey had lower cancer incidence than people who used vapes. Fine (though maybe confounded: perhaps cold-turkey quitters found quitting easier?) but I bet vapers had lower incidence than people who never quit!
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"risks of switching from tobacco cigarettes to vapes" sounds like the value bet is sticking with the cigarettes. If vaping helps you quit you should 100% do it
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Tom Chivers retweeted
Most of Europe has not yet absorbed what AI is about to do to us. The few who have are not saying it loudly enough. We wrote Europe 2031: a five-year scenario of the continent's slide into irrelevance, how AI is driving it, and what can still be done to change course.
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Tom Chivers retweeted
Britain losing access to Claude fable isn’t on the BBC or Times homepage, 4th on the guardian, 7th on the FT and below the fold on the Telegraph. What are we doing here?
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Tom Chivers retweeted
Anyone who’s paid much attention to degrowth scholarship already knows the field often engages in science-washing (getting opinion published in science journals and then declaring “The Science” says we must do a degrowth), but it’s good to see a formal analysis of the problem.
Peer-reviewed literature review on degrowth: ◼️Almost 90% of “studies” are opinions rather than analysis. ◼️Few of them use quantitative or qualitative data; even fewer use formal modelling. ◼️Most of them offer subjective policy advice without policy evaluation. ◼️Most “studies” focus on small, local cases without a clear implication for the whole economy. Source: sciencedirect.com/science/ar…
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Tom Chivers retweeted
222K likes. The fixed pie fallacy is probably the single most destructive delusion on the planet. The belief that wealth cannot be created—only distributed—has done more than any other to stop people from lifting themselves and others out of poverty.
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Tom Chivers retweeted
0.3% of the water consumed by US golf courses last year
BREAKING: Amazon data centers used 2.5 billion gallons of water in 2025
Community note
Amazon's data centers withdrew 2.5 billion gallons of water in 2025, down 2% from 2024 despite expansion, or less than 0.1% of annual U.S. landscape irrigation. aboutamazon.com/news/sustainab…
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Tom Chivers retweeted
Jun 13
This is, perversely, good news for Britain, Australia, Japan, Europe, and other countries being cut off that would once have seen themselves as close allies of the United States. It shows us what the future may hold if AI is the strategically and economically decisive technology of the 21st century and is controlled by the US and China. It is good news because *it may be happening early enough to give us time to act.* I think this will be rescinded pretty soon, but it’s a sign of things to come. In a future where frontier models cannot be used outside the US, our industries and economies will fall behind and American businesses may not be able to operate overseas. We won’t be able to defend ourselves militarily with defence systems built on obsolete software. Europe 2031 is a good scenario of what a future like this could mean: europe2031.ai Some of the things we need to do are ‘no regrets’ measures we should do anyway. But some are genuinely costly and risky. We need cheap electricity – powered by gas, coal (this is costly, coal is very bad), deregulated nuclear fission – whatever can provide *cheap, reliable, 24/7* power. This almost certainly excludes wind power, which is enormously expensive and unreliable. We need projects to be able to connect to the grid in days rather than years by paying for fast-track connections. We need to make it incredibly easy to build data centres, with the property taxes retained locally and hypothecated for local tax cuts so there is some direct benefit for locals. This doesn’t need to be nationwide. We need to create new regulatory regimes for innovative businesses that give them the right to hire and fire staff with ease. The difficulty and cost of firing staff is one of the main reasons Europe has fallen behind so badly. We need to create a parallel employment regime that companies and workers can opt in to: worksinprogress.co/issue/why… Even though I think it will probably fail, I think we should probably try to create a good, non-American frontier AI lab. I am quite pessimistic about this – even extremely well-resourced, innovative software companies are struggling to do this. But the stakes are so high that not trying seems foolish. One thing that might work in our favour is the number of brilliant AI engineers who are not US citizens, who under the current export controls do not have access to Mythos/Fable even if they live and work in the US. What happens to Demis Hassabis, Ilya Sutskever, Andrej Karpathy, and the many other Europeans, Canadians, etc who are working on AI models in Britain and America who are affected by this? I do not think we should force our own companies to use model, because this would exacerbate their economic weakness – this lab should have to compete on an even playing field. I am deeply sceptical that this can work, but we cannot rule it out. If we do it, it has to be able to pay US salaries, operate without political constraints. worksinprogress.co/issue/how… It is cope to tell yourself that Trump is an aberration or that these export controls are a one-off. To repeat, I think these specific controls will be lifted quickly and it will be easy to move on and forget it happened. But this is a look into a potential future. Every one of us that is not a US citizen is at risk. The standard political divides do not apply here; the question is whether you grasp the enormity of AI as a technology. We have to act!
The US government, citing national security authorities, has issued an export control directive to suspend all access to Fable 5 and Mythos 5 by any foreign national, whether inside or outside the United States, including foreign national Anthropic employees. The net effect of this order is that we must abruptly disable Fable 5 and Mythos 5 for all our customers to ensure compliance. Access to all other Claude models is not affected. We apologize for this disruption to our customers. We believe this is a misunderstanding and are working to restore access as soon as possible. Read our full statement: anthropic.com/news/fable-myt…
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Tom Chivers retweeted
Jun 12
hate to say it but eliezer called this in the sequences lesswrong.com/posts/iiWiHgtQ…
always thought harry potter series was unrealistically pessimistic about how few characters would care to learn more how the magic actually works & then u watch people interact with llms
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Tom Chivers retweeted
rockets used to grow in the forest and they were distributed evenly all over the world until Elon hoarded them out of spite
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Huh, we didn’t have this in the scenario until 2029 europe2031.ai/
The US government, citing national security authorities, has issued an export control directive to suspend all access to Fable 5 and Mythos 5 by any foreign national, whether inside or outside the United States, including foreign national Anthropic employees. The net effect of this order is that we must abruptly disable Fable 5 and Mythos 5 for all our customers to ensure compliance. Access to all other Claude models is not affected. We apologize for this disruption to our customers. We believe this is a misunderstanding and are working to restore access as soon as possible. Read our full statement: anthropic.com/news/fable-myt…
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Tom Chivers retweeted
The UK actually has a ton of frontier or near-frontier global companies for a country of its size and I think its economic problems could basically all be solved with “YIMBY stuff” in a way that isn’t true elsewhere. slowboring.com/p/hard-work-i…
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Tom Chivers retweeted
Extremely cogent and well-written scenario, starting from the present, warning about Europe’s dangerous trajectory. I was in Paris for the AI Summit after DeepSeek r1, and I can attest that the level of delusion about what that model meant was exactly as this scenario describes.
Most of Europe has not yet absorbed what AI is about to do to us. The few who have are not saying it loudly enough. We wrote Europe 2031: a five-year scenario of the continent's slide into irrelevance, how AI is driving it, and what can still be done to change course.
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I found this project pretty chilling, if fascinating: a scenario depicting what will happen to Europe if it doesn't step up on AI. (In short, economic collapse and gutting for parts by China and the US.) europe2031.ai/ a long read/listen, but I hope worth it
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I just wrote the words: Daan Juijn, Stan van Baarsen, Judith Dada, Lily Stelling, Philip Fox, Alex Petropoulos, and Michiel Bakker did the actual thinking.
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Tom Chivers retweeted
This should be a wake-up call for the UK… (Note that this is a per-capita chart)
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Tom Chivers retweeted
I'm deeply concerned about Europe's future on AI. One of my biggest worries is our erosion of agency, our ability to stay relevant and fight for our values in a future where AI becomes a civilisationally important technology. Myself, @DadaJudith , @bakkermichiel and others have written a scenario to outline a potential future we worry we are on track towards. europe2031.ai/ Every optimistic and realistic path I can see for Europe runs through a central node - one where Europe has more leverage, more importance and more say. One where Europe grows more, builds more where it matters, and takes ownership over its resilience. Europe 2031 is a five-year scenario of the continent's slide into irrelevance: how AI is driving it, and what can still be done. The co-authors are researchers, scientists and investors who have advised European leaders, co-authored national AI strategies, built and funded these systems from the inside. We have no interest in hype and we deeply care about this continent. Europe 2031 ends with five concrete recommendations: - drastically more compute on European soil - an AI middle-power coalition - labour-market reforms - a bold position in robotics and industrial AI - and a positive vision of what AI can do for society. Europe can still change course if it finds the political will and the courage to engage in the most ambitious political and economic agenda the continent has undertaken in peacetime. I encourage you to read it if you have the time:
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Tom Chivers retweeted
I know this is going to annoy literally everyone but I'm going to say it anyway: Whether it's Brixton 1981, London 2011, or Belfast 2026; rioters, looters, and arsonists always try to claim noble political motivations for their thuggery. But it is always bollocks. The Brixton riots weren't really about 'racism'. The London riots weren't really about 'austerity'. And the Belfast riots aren't really about 'public safety'. There's a reason this specific kind of lawlessness, thuggery, and arson only takes place in the summer months. Because it's not about politics. It's about adrenaline. It's about fun. It's a form of grotesque entertainment for a specific type of dimwit with a high propensity to violence. Don't defend the dimwits who are literally torching their communities for laugh. Who are picking fights as a form of entertainment. Who are no more righteous in their anger than your common or garden playground bully. Up with this we must not put. From left nor from right. It's the same low IQ, temperamentally violent bullshit every single time.
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(I should say, it's very much not my project alone; @DadaJudith, @bakkermichiel, @AlexTPet, Daan Juijn, Stan van Baarsen, and others did the thinking, I just made the words sound nice and read them out)
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other names I've forgotten, sorry: Lily Stelling and Philip Fox. Anyway. I hope you enjoy the thing and also that it makes you think "yes, Europe should step up its AI data centre buildout by at least one order of magnitude and preferably two"
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