Joined March 2009
833 Photos and videos
Pinned Tweet
These slides from the excellent @lugaricano are a must read for any European policymaker who seriously wants their country to thrive as AI advances. We urgently need to ensure that our economy is ready to take advantage of AI or we will be left behind. In a rapidly changing and uncertain world, the only way to ensure security is to ensure that we have the means to pay for it. imfs-frankfurt.de/fileadmin/… I would add one point: if AI develops to a point where it is a ‘gross substitute’ for human labour (elasticity of substitution > 1), the human labour share of GDP may shrink. At that point there is no reason to assume that GDPs per capita in developed countries will cluster as they have. Being left behind could mean being left very far behind indeed.
Replying to @lugaricano
@lugaricano argues: If AI raises global interest rates by boosting productivity, but Europe fails to adopt AI, Europe imports higher r without higher g -- a path to fiscal crisis.
7
52
236
53,218
John Myers retweeted
It's such a waste of public funding. Tax academics across Europe scrabble around for funding for actually useful research, but this utopian/authoritarian nonsense gets money thrown at it. Makes me quite angry.
16
38
396
21,437
Many thanks to @jrf_uk for kindly funding this collection, to which I contributed an essay along with many others. Each author’s opinion is of course their own:
2
120
Fun context on speed of data centre deployment for UK planning folk:
Meta is building dozens of massive tents at campuses across the US, sticking billions of dollars of chips inside, and powering them with off-grid turbines. The AI race has officially entered its Mad Max phase. Over the last month, I reviewed hundreds of documents and satellite images for Cleanview's latest report on behind-the-meter data centers. Meta's data center strategy, which is very visible from space, was one of the weirder approaches I came across. Mark Zuckerberg recently ditched the data center designs that Meta had perfected over the last decade and told his team to stick tens of thousands of chips in tents outside their data center in New Albany, Ohio. Each of these chips costs about $60,000. Zuckerberg plans to stick billions of dollars worth of them in the tents. The strategy has helped cut the time to build compute in half. The first five buildings at Meta’s New Albany, Ohio data center took between two and three years to build. Meta started building five ~125,000 square foot tents between April and June of 2026, according to city permits. Satellite images show the structures have all been built. To power those "rapid deployment structures", as they are officially named, Meta signed a 10-year deal with Williams to build a pair of 200 MW off-grid power plants. Those power plants began construction about a year ago and are nearly complete. Meta is using the same strategy to build a data center in Tennessee, bringing the total count of tent data centers to three. Strategies like this are part of the reason behind-the-meter data center capacity is growing so quickly. In Cleanview's report, I found that there's currently about 2 GW of BTM capacity online today. By the end of the year, it will likely be 3 GW—equivalent to three nuclear power plants. By the end of 2027, it could be as high as 13 GW—more than the power demand of NYC. I've been talking to a lot of reporters about this research. When I told one reporter about these tents and other companies powering their data centers with jet engines, he said, "It's like a scene out of the movie Mad Max."
4
1,023
The announcement yesterday that the Government is going ahead with setting up a development corporation for Greater Cambridge has not yet received enough attention. Winning cross-party support, it is a significant step to deliver for ordinary working people and to enable growth of critical industries that are vital to deliver jobs and funding for services across the country as a whole. With it came the announcement that, as a first step, Homes England is moving forward on the development of 10,000 homes in an ambitious extension of Cambridge on a former airfield to the east. Enabling homes where there is the greatest shortage and the greatest additional social and economic value to be created, as shown by the enormous gap between the costs of building homes and the value that the completed homes will have in places like Cambridge, is one of the fastest and most effective ways to raise living standards across the country. Done carefully, it can be done without net central government funding, releasing more funds to be invested in other places and regions. Congratulations to everyone inside and outside local and national government who worked so hard on this. It will be key to maintain a focus on delivering high-quality places and infrastructure. x.com/mtpennycook/status/206…

We are announcing today the establishment of a Greater Cambridge Development Corporation.   Working closely with local partners and communities, this Labour government will deliver high-quality, sustainable and nationally significant growth in Cambridge and its surrounding areas.
10
28
2,992
Every £10bn of inward investment that we do not enable is a lost opportunity to create jobs, earn tax revenues to fund better public services, and ensure wealth is spread around the country. ft.com/content/1022f9bd-5b6d…
5
313
John Myers retweeted
This week government tried to put HS2 back on track. Unsurprisingly they want to look ahead. But if we want to save the future of British infrastructure, we need to look back. We now have a lot of people saying that the reason HS2 went wrong was that bad politicians led it astray. Terrible decisions were indeed made; but to just blame that is to let one very obvious, very guilty-looking group of people off the hook. And thanks to what has been released as part of the reset, we now know more about what they did. Why has it taken nearly twenty years of effort to make high speed trains in Britain seemingly impossible? limbostructure.substack.com/…
10
8
38
26,404
Come and work with an incredible team!
🚨 We are hiring! 🚨 Could you be our next head of operations? 👀 We are looking for an exceptionally high-agency, adaptable and organised individual, who is excited about our mission to create UK growth & progress, to run operations for our growing team. Full time, £70-90k, London. Full details & how to apply here: britishprogress.org/opportun…
2
10
1,548
HMG spends vast amounts defending judicial reviews which then fail. That raises bills and makes infrastructure unaffordable. This should mean we can spend those sums on improving the proposals to benefit the environment, and to deliver for working people: gov.uk/government/news/reeve…
1
8
248
John Myers retweeted
What is the climate impact of data centres? The answer depends on where you are. In a new report, @freddieposer & I find that Britain is one of the greenest places in the world to build data centres. Why is this? Because the UK has made greater strides towards decarbonising the grid than the vast majority of advanced economies. This matters, because global data centre demand is highly mobile and inelastic. If a data centre isn't built here, it is likely to be built in Germany, the US or Ireland – which would all counterfactually produce more emissions.
17
35
143
36,768
John Myers retweeted
Required reading for all who blame “high land costs” for unaffordable housing.
New AGF blog: Tokyo is the world's most affordable megacity--and they're still permitting homes at many times the pace of NYC, London, Paris Yet land prices are still very high! A 1-acre suburban home in Chiyoda would cost over $100M before you nail the first board Tokyo shows structures can be affordable if you stack enough of them on pricey land. It also shows that YIMBYism will not crash land markets or impoverish land-rich homeowners in attractive areas Tokyo also heightens the contradictions of the profit-focused version of the Homevoter Hypothesis: In the highest-demand neighborhoods of the US, the homevoters prioritizing "Boomer suburb vibes" are not just hurting renters, they're costing *themselves* billions of dollars of land value
11
20
244
15,266
John Myers retweeted
This is a worrying decision from the ICO which raises some big questions about where power sits in our democracy. Ministers & civil servants should be allowed – indeed, encouraged! – to use AI tools to test ideas and ask questions without fear of being FOI-ed. Instead, this will have a chilling effect, and stop public servants from using the best technology out there. Yet again, ALBs that were designed to protect democracy are instead preventing the state from delivering for ordinary people.
4
9
51
8,058
John Myers retweeted
Do we also need to believe covered interest parity no longer holds? Theory suggests markets expect sterling to weaken given the interest rate differential, which will make those eur bonds pricier to pay off in £ terms
1
1
1
204
I enjoyed this as ever @timleunig but I would worry about whether we will realistically hold the line at 10% and whether this could risk a slide into ‘original sin’ of issuing entirely in EUR because it looks cheaper in the short run? ft.com/content/e709d898-5d0c…
4
1
7
2,849
(or indeed just mainly in EUR)
213
John Myers retweeted
I am looking for someone who is excellent on clinical trials and understands the British system to do some work with us scoping how to get clinical trial abundance in 🇬🇧 Hoping the X network helps me here!
24
40
107
20,247
John Myers retweeted
The idea that ministers' LLM usage is FOI-able is insane. Government should have contested this way more strongly. Clearly should have fallen under the policy development exemption, otherwise we more or less guarantee no minister will use AI at a time that adoption is key!
Replying to @JuliaLopezMP
Unfortunately, in one of the most absurd rulings I can remember, ministers' ChatGPT usage is deemed to be FOI-able. This is obviously hugely corrosive and more or less guarantees that no minister will (say they) use AI. See e.g. gov.uk/government/publicatio…
13
56
469
69,443
John Myers retweeted
When we upzone one parcel from house- to apartment-zoning, there are two effects: 1) own-parcel: the upzoned parcel increases in value from P1H to P2A. 2) cross-parcel: increasing the stock of apartment-zoned land reduces its price from P1A to P2A. 1/
1
1
7
1,381