🇺🇸 Hacker News English

A known ZSNES emulator bug breaks barrel rotation control in Donkey Kong Country 2.

The game uses an open bus read (and $2000) instead of an immediate value, relying on SNES hardware to return 0x2020.

Without open bus emulation, ZSNES’s AND always yields zero, so barrels spin endlessly.

AI’s four major breakthroughs reused existing methods and were driven by tapping new datasets.

Each breakthrough corresponded to a new data source: ImageNet images, web text, human feedback labels, and programmatic verifiers.

Technical and architectural innovations matter less than the data; scaling and diversifying training data is the main driver of progress.

UK job vacancies dipped 0.51% in May but grew 0.49% year-on-year, marking a third consecutive month of annual improvement.

Entry-level roles including apprenticeships, internships and junior positions have declined by 32% since November 2022 following the rise of generative AI tools.

Average advertised salaries reached £42,403 in May, up 0.3% from April and 9.38% year-on-year, the strongest annual pay growth since mid-2022.

TokenDagger is a fast, drop-in replacement for OpenAI’s TikToken tokenizer.

It delivers about 2× higher throughput and 4× faster code-tokenization performance.

Optimizations include PCRE2-based regex parsing and a simplified BPE algorithm.

The provenance memory model defines how to trace the origins of C pointer values to improve alias analysis and program optimization.

It introduces the concept of a storage instance as the maximal region of memory provided by allocations, definitions, or temporaries.

A pointer’s provenance is the storage instance it points into or one beyond, enabling precise aliasing decisions.

Over-the-counter continuous glucose monitoring sensors now cost about $50 and last two weeks.

The sensor takes glucose readings every five minutes and transmits data every fifteen minutes to a smartphone app.

Data can be exported by linking the app to Apple Health and converting the XML export to CSV.

Author started charging $100 for 30-minute chats to meet readers and raise funds for education non-profits.

The fee model quickly attracted participants worldwide across various professions and regions.

Donations went directly to an education non-profit, generating nearly $6,000 to date.

Let's Encrypt ended its expiration notification email service on June 4, 2025.

Most subscribers now use automated systems for certificate renewal.

Removing email storage enhances user privacy and reduces infrastructure complexity.

Priscilla Chan and Mark Zuckerberg opened The Primary School in East Palo Alto in 2016 to support disadvantaged children with free tuition, health care, and counseling.

In April 2025, the Chan Zuckerberg Initiative decided to stop funding and close the school after the 2025–2026 year due to lack of financial sustainability.

About 400 students from preschool to eighth grade, mostly children of color from low-income families, will need to find new schools.

Deutsche Bahn and Siemens Mobility achieved a new test speed record of 405.0 km/h on the Erfurt–Leipzig/Halle high-speed line.

High-speed tests over 300 km/h are rare on German tracks and provide valuable data on aerodynamics, acoustics, and train-infrastructure interaction.

The infrastructure performed reliably after 10 years of continuous operation, needing no adjustments for extreme speeds.