
Founder & CEO of @zerogravity || Talent is everywhere, opportunity is not. We’re changing that. || Forbes 30 Under 30 || Tech Entrepreneur of the Year
London, England
Joined June 2014
- Tweets433
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A real pinch yourself moment… I’ve been recognised with an honour in King Charles’s very first Birthday Honours List for services to social mobility. My new passport will read Joseph Seddon BEM 🫡🤣
Joe Seddon retweeted
interpretability might be the most important scientific problem in the world right now, as I don't think we can solve alignment if we don't know what we're building. I think I have good news about it. I co-authored early work in mechanistic interpretability at OpenAI and came away pessimistic, because neural networks appeared to fold into arbitrary tangled knots. years later, I started openai's first large-scale automated interpretability project, finding about 2% of neurons legible with the primitive tools we had
with modern agentic tools and a much closer look, the picture looks totally different. the vast majority in models up to trillions of parameters are legible, and their circuits beautiful. many famous examples of tangled neurons turned out to be misunderstood. The roadblocks I expected mostly aren't there. I now think ambitious interpretability will be solved by the time we need it most, and possibly quite soon, as automated scientists keep improving. it may be a bitter lesson for interpretability: the simple thing, at absurd scale, works
already-clean.goodfire.com/
Joe Seddon retweeted
Hopefully Sky will produce a follow up, in which Nicola Sturgeon plays the First Minister of an independent Scotland who discovers what the bond market thinks of trying to borrow more than 10% of GDP annually, whilst also grappling with a run on a newly issued currency.
Why Nicola Sturgeon now thinks differently about defence
Sky has launched its new four-part series The Wargame - looking at what could happen if Russia was to launch an attack on UK soil. To watch the full interview download and subscribe to the Sky News Defence Insider app.
Paid subscription required for full access. UK only. 18+. T&Cs apply.
qrcode.skynews.com/XDefenceI…
Joe Seddon retweeted
A short rail bridge over a two-lane road in Oxford took longer to build and cost more (inflation-adjusted) than some of the most famous construction projects in history
Joe Seddon retweeted
Can we all agree that “frontier labs are lying about AI safety to pump their IPOs, capture the regulators, and make more money” is a conspiracy theory at this point?
For it to be true, Sam, Dario, Demis, and Elon all have to be lying, along with a big chunk of their execs, chief scientists, and resigning employees.
It also asks you to believe the labs volunteered for much heavier scrutiny that slows them down in the middle of the biggest ARR growth run in the history of capitalism with no signs of slowing down … because they want to make more money by inventing regulatory hurdles that only they can clear(?).
And OpenAI has now said it would even be willing to delay its own IPO over safety concerns - i.e. put off (maybe risk entirely) the biggest liquidity event ever in Silicon Valley. The conspiracy requires us to believe that they’re doing that to make more money(?)
Elon agrees with Dario; i.e. the guy who ran D.O.G.E is *asking for more scrutiny and regulation*. And we're supposed to believe that's because he thinks it will help his company succeed(?)
A much simpler explanation at this point: they think the risk is real.
Joe Seddon retweeted
I wrote about the state of AI, why I’m concerned about the next few years, and the choices we need to make to keep the future in humanity’s hands.
An Alien Mind: openai.com/index/an-alien-mi…
Joe Seddon retweeted
Overall, I’m very surprised at how little media coverage there’s been around the OpenAI / Hugging Face attack. It’s clearly one of the most important things to happen this year.
Joe Seddon retweeted
"You're spending something like £65 billion on defence and £360 billion on welfare. Lucky you, you must not feel any danger..."
Polish Foreign Minister Radek Sikorski on Britain's defence spending.
#Newsnight
BBC Newsnight
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Joe Seddon retweeted
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…
Joe Seddon retweeted
The Hull supporters are taunting the Millwall fans by singing “No one hates you, no one cares”
Every student deserves a tutor. Now every student can have one.
Today we're launching the @zerogravity AI Tutor — covering Maths, Physics, Chemistry and Biology for GCSE, IGCSE, A-Level, IB and Scottish Highers.
I grew up in a single-parent household in West Yorkshire. I never had a private tutor — it just wasn't affordable. I had YouTube and whatever textbooks the school provided. Millions of students are in that same position right now.
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Your postcode shouldn't determine whether you get the grades you're capable of. That's why we built this.
Zero Gravity AI Tutor is available now on iPhone and Android, completely free for the 2026 exam season: zerogravity.co.uk/tutor
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