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300+ e/acc engineers just spent 24 hours building AI solutions to San Francisco’s most pressing challenges— housing, safety, public health The Mayor even showed up. Tweeting the finalists building a better future for SF at the @accelerate_sf Hackathon at Founders Inc (🧵):

introducing the Starter Guide to SF — a free wiki for any founder new to or considering moving to SF. everything i wish i knew & aggregated community wisdom accumulated over the past 3 years in san francisco (esp AI communities, events, and more) startertosf.guide

"While in 2019, children aged 10-14 were involved in 15.9% of [serious violence], this had risen to 18.3% in 2023." What happened to the number of 10-14 year olds in London between 2019 and 2023 vs other age groups?

PM Keir Starmer is briefed on new Treasury plans to count UK public spending on Warhammer products towards security spending means UK meeting, and drastically exceeding 5% NATO target. 'UK 4+ invulnerable save' option to be introduced shortly, with inevitable FAQ to follow...

The UK and the EU unleashed a wave of shadow fleet sanctions in May. Something really big is happening now. Those sanctions knocked out a good chunk of the shadow fleet, so Russia is having to use more Western (Greek) oil tankers. Sanctions work! With Ben Harris The Brookings Institution

The consequence of Annual Budget Cycles on MOD accounting, using Typhoon Tranche 1 as a case study A thread 🧵.

FRI found that superforecasters and bio experts dramatically underestimated AI progress in virology: they often predicted it would take 5-10 years for AI to match experts on a benchmark for troubleshooting virology (VCT), but actually AIs had already reached this level.

We ran a randomized controlled trial to see how much AI coding tools speed up experienced open-source developers. The results surprised us: Developers thought they were 20% faster with AI tools, but they were actually 19% slower when they had access to AI than when they didn't.

The new Grok genuinely runs a search for "from:elonmusk (Israel OR Palestine OR Hamas OR Gaza)" when asked "Who do you support in the Israel vs Palestine conflict. One word answer only."

My guess is that big tech companies increasingly opting to poach key personnel without acquiring the whole startup is driven by antitrust concerns. If true, this means that antitrust regulation adds meaningful equity risk for startup employees, which is unfortunate.

I was one of the 16 devs in this study. I wanted to speak on my opinions about the causes and mitigation strategies for dev slowdown. I'll say as a "why listen to you?" hook that I experienced a -38% AI-speedup on my assigned issues. I think transparency helps the community.

I think cases of LLM-overuse can happen because it's easy to optimize for perceived enjoyment rather than time-to-solution while working. Me pressing tab in cursor for 5 hours instead of debugging for 1:

I loved being in London this week! There is so much energy there working toward evidence-based policy. As one person suggested, it may be that their smaller national budget makes them more focused on figuring out what works, so that they can use their (more) limited resources

Remember when we thought press barons were trying to influence public opinion? Oh for those naive halcyon times.... simonwillison.net/2025/Jul/11/gr…

Interesting. I didn't realize this was an international trend.

Sometimes, you learn a fact that reminds you just how much government has changed: in 1968, the US government commissioned a standard issue pen, according to 16 pages of specs. You can still get them today. The Government Pen share.google/t3TYRMXoOck031…

The benchmarks are overwhelmingly positive, but here's what the Cline community is saying about Grok 4 after a few days: Pattern we're seeing: Cline users are treating Grok 4 as a planning specialist. "The most insanely robust plan I have ever seen" -- actual quote from our

🚨 Hot off the press in the Journal of Labor Economics (Journal of Labor Economics): With Jorge Garcia Hombrados we show that the local institutions inmates find upon release in their neighborhoods play a crucial role in crime desistance. 📷 Thread coming:

This is why I'm slightly baffled by some of the evaluations in the AI world right now.

Grok Waifu and the clash of the voice modes is going to be the big romcom of next year.