Mapping Every Dollar of America’s $5T Healthcare System

Mapping Every Dollar of America’s $5 Trillion Healthcare System A representation of the US Healthcare Financing Flow Sankey diagram in the style of Ernst Haeckel’s Art Forms in Nature. 11 minute read time Follow the money and you might get lost. That’s why I made a diagram for the entire US healthcare system’s financial flows […]
GSWT: Gaussian Splatting Wang Tiles

Given multi-view images of an exemplar scene, our goal is to construct Gaussian Splatting Wang Tiles (GSWT) that can be tiled on arbitrary surfaces and rendered in real time with our novel GSWT renderer. An overview of the entire pipeline is illustrated below. We begin by reconstructing the 3DGS exemplar at multiple LODs. For each […]
Congressional lawmakers 47% pts better at picking stocks

We thank comments from Sumit Agarwal, Ron Kaniel, Roni Michaely, Lyndon Moore, Antoinette Schoar, and seminar/conference participants at the Chinese University of Hong Kong, Columbia Business School, Deakin University, Macquarie University, Peking University (HSBC and Guanghua), Shanghai Lixin University of Accounting and Finance, Tsinghua University, University of Sydney, University of Technology Sydney, 2023 Australasian Finance […]
Helldivers 2 devs slash install size from 154GB to 23GB

It’s no surprise to see modern AAA games occupying hundreds of gigabytes of storage these days, especially if you are gaming on a PC. But somehow, Arrowhead Game Studios, the developers behind the popular co-op shooter Helldivers 2, have managed to substantially cut the game’s size by 85%. As per a recent post on Steam, […]
You Can’t Fool the Optimizer
You can’t fool the optimiser Written by me, proof-read by an LLM. Details at end. Sometimes you’ll step through code in a debugger and find a complex-looking loop… that executes as a single instruction. The compiler saw through the obfuscation and generated the obvious code anyway. Consider this assortment of highly questionable unsigned addition routines […]
The “Mad Men” in 4K on HBO Max Debacle

Reader warning: there’s gonna be a lot of pretend puke photos in this post. If you’ve fired up HBO Max recently, you’ve probably seen that one of the most influential and prestigious television series of all time was to premiere in 4K on the streaming service. The show’s first four seasons were shot on film, […]
Zig quits GitHub, says Microsoft’s AI obsession has ruined the service

The Foundation that promotes the Zig programming language has quit GitHub due to what its leadership perceives as the code sharing site’s decline. The drama began in April 2025 when GitHub user AlekseiNikiforovIBM started a thread titled “safe_sleep.sh rarely hangs indefinitely.” GitHub addressed the problem in August, but didn’t reveal that in the thread, which […]
Accepting US car standards would risk European lives

EU officials must revisit the hastily agreed trade deal with the US, where the EU stated that it “intends to accept” lower US vehicle standards, say cities – including Paris, Brussels and Amsterdam, and more than 75 civil society organisations. In a letter to European lawmakers, the signatories warn that aligning European standards with laxer […]
Quad9 DOH HTTP/1.1 Retirement, December 15, 2025

Back to Blog October 9, 2025 blog Quad9 will be discontinuing support within DNS-over-HTTPS (DOH) using HTTP/1.1 on December 15, 2025. This should have no impact on most users, but there are some older or non-compliant devices or software which may be unsupported after that time with DOH and which will have to revert to […]
Show HN: HCB Mobile – financial app built by 17 y/o, processing $6M/month

Mohamad Mortada Dec 2, 2025 I’m Mohamad, a 17-year-old from the SF Bay Area, and I just shipped the official mobile app for HCB. If you haven’t heard of it, HCB is the financial backbone for over 6,500 teenager-led nonprofits, clubs, and hackathons. We provide 501(c)(3) nonprofit status, access to a bank account, a donation […]