2025-06-23

31 篇热帖

1. Backyard Coffee and Jazz in Kyoto (thedeletedscenes.substack.com)

在京都的一次寻常午后,作者于街头发现了一家独特的家庭式咖啡馆,它坐落在主人的车道上,白天是咖啡馆,夜晚则变为小酒吧。店主亲自为顾客研磨不同的咖啡豆,并以手冲方式制作咖啡。店内空间虽小,最多容纳约十二人,但通过复古的音响和黑胶唱片机播放着爵士乐,营造出一种仿佛穿越时空的氛围。老旧的建筑内部并未显得破旧,反而像一座充满情调的时光胶囊。

这家小店是日本城市中众多微型企业的缩影,例如只有几个座位的酒吧、家庭式书店或主题酒吧。这些商业形态体现了日本街头文化的活力,其共同特点是进入门槛极低,让普通人能够以极小的风险将个人爱好或热情转化为一种半商业化的实践。在步行友好的城市环境中,这种模式模糊了商业交易与主客关系的界限,创造了一种无缝、亲密的体验。

作者将这种体验与美国常见的商业模式进行对比,认为在日本的这类空间中更容易唤起好奇心与愉悦感。这种感受源于允许个人在社区中自由表达和尝试,而非必须面对巨大的创业风险或完全将爱好私有化。最终,作者认为这种低门槛的自由企业模式能够滋养本地化、小规模且美好的事物。

2. Vera C. Rubin Observatory first images (rubinobservatory.org)

NSF-DOE 薇拉·C·鲁宾天文台首批图像摘要

NSF-DOE 薇拉·C·鲁宾天文台发布了其首批科学图像,展示了其强大的观测能力。核心图像聚焦于距地球约5500万光年的室女座星系团南部区域,呈现了一个由约1000万个星系组成的丰富“宇宙宝库”,这仅占其未来十年“时空遗产巡天”(LSST)计划将拍摄的约200亿个星系的0.05%。

图像内容与科学价值

  • 丰富天体:图像中包含了从银河系的明亮前景恒星(蓝到红色)、近距离的蓝色螺旋星系,到遥远的红色星系群等各类天体,展示了广泛的研究潜力。
  • 银河系研究:通过追踪银河系内恒星的位置、亮度和运动,这些数据将以前所未有的细节绘制银河系的结构、历史和演化图景。
  • 动态天空监测:天文台将定期重访同一区域,捕捉超新星爆发、恒星被黑洞吞噬等瞬变现象。其软件能自动比对图像,每晚可识别多达700万次变化
  • 暗物质与暗能量:通过绘制星系随时间变化的形态和分布,科学家将借此研究宇宙中看不见的暗物质结构和暗能量对宇宙膨胀的影响。
  • 太阳系编目:其快速的系统能捕捉小行星、彗星等移动天体的轨迹,为构建太阳系详细目录、识别潜在威胁天体提供关键数据。

技术能力与图像制作

  • 强大设备:图像由全球最大的数码相机——32亿像素的LSST相机拍摄。
  • 高效合成:此深度图像覆盖约25平方度天区,由1185次曝光在仅7个夜晚内合成(观测于2025年4月至5月进行),总曝光时间约10.5小时。
  • 独特能力:鲁宾天文台是唯一能如此快速地组装出如此宽广且深邃图像的天文设备。
  • 观测模式:每次曝光覆盖10平方度(约45个满月大小),通过不同时间和颜色滤镜的多次曝光叠加,揭示了单一曝光无法捕捉的极暗细节。

未来十年计划

鲁宾天文台将在未来10年每晚扫描天空,创建超宽、超高清的宇宙动态记录。这些首批图像仅是其揭示不断变化宇宙的起点。网站还展示了其他首批发布成果,包括新发现的小行星群、恒星变率研究以及礁湖星云与三叶星云的图像。

3. How I use my terminal (jyn.dev)

i have gone a little above and beyond trying to get all the features of VSCode

5. Claude Code for VSCode (marketplace.visualstudio.com)

Extension for Visual Studio Code - Claude Code for VS Code: Harness the power of Claude Code without leaving your IDE

6. AGI is Mathematically Impossible 2: When Entropy Returns (philarchive.org)

文档标题: AGI is Mathematically Impossible 2: When Entropy Returns

核心性质: 这是一份技术性/学术性的PDF文档,旨在从数学角度论证通用人工智能(AGI)的不可行性。该文档是系列文章的第二部分,其副标题“当熵回归时”暗示了文中可能运用了信息论(特别是香农熵)的概念来支撑其核心论点。

文档结构: 文档共计47页。从提供的信息看,其正文内容(Page 1 至 Page 47)均未被提取或显示。文档的元数据表明,它是由“Pages”软件在2025年6月18日创建的,遵循PDF 1.4标准。

关键信息:

  • 核心论点: 文档的标题直接表明其主张,即AGI在数学上是不可能的。
  • 论证视角: 副标题提示论证可能紧密关联于“熵”的概念,这通常与信息的不确定性、系统的复杂性或能量耗散相关,可能用于论述智能系统或计算过程的根本限制。
  • 文档性质: 这是一份结构化的、长达47页的论证性文本,属于技术/理论探讨范畴。

总结: 该文档是一份篇幅较长的技术论述,其既定目标是通过数学证明来阐述通用人工智能(AGI)的不可实现性。文中很可能运用了信息论与热力学等领域的原理(如熵),作为其核心论证的数学基础。由于提供的文本仅包含元数据与页码结构,未包含具体的论证内容、数据或结论细节。

8. Making TRAMP go Brrrr (coredumped.dev)

I recently changed jobs and found myself in a position where I would need to do a lot of work on remote machines. Since I am Emacs user, the most common way to do this is using TRAMP (Transparent Remote access, Multiple Protcol). TRAMP is an Emacs package that let’s you treat a remote host like a local system, similar to VSCode Remote Development Extension. I had used TRAMP before and it tended to be slow.

9. Timdle – Place historical events in chronological order (www.timdle.com)

Timdle is a free daily timeline game. Arrange historical events in chronological order, learn history, and compete with others.

10. GOP omnibus bill would sell off USPS's EVs (www.washingtonpost.com)

A little-noticed part of Trump’s tax and immigration package would see the U.S. undo billions of dollars in electric vehicle investments by the Postal Service.

11. Sailing the fjords like the Vikings yields unexpected insights (arstechnica.com)

Greer Jarrett has identified four possible small ports, or "havens," used by Vikings along the Norwegian coast.

12. Fairphone 6 is switching to a new design that's even more sustainable (www.androidcentral.com)

The highly anticipated Fairphone 6's leaked renders suggest the company's commitment to repairability.

13. Finding a billion factorials in 60 ms with SIMD (codeforces.com)

Codeforces. Programming competitions and contests, programming community

14. Show HN: Lego Island Playable in the Browser (isle.pizza)

乐高岛浏览器版摘要

乐高岛(1997年)的浏览器可玩版本是一个开源项目,允许用户直接在浏览器中体验这款经典游戏,无需下载或安装。该项目基于原始游戏的反编译源代码进行忠实重制,确保原汁原味的游戏玩法。它支持桌面、手机等多种设备,提供跨平台兼容性,方便用户在任何场景下访问。整体设计注重便捷性和开源精神,使玩家能轻松重温乐高岛的冒险世界。

15. Show HN: Report idling vehicles in NYC (and get a cut of the fines) with AI (apps.apple.com)

Download Idle Reporter for NYC DEP by Proof by Induction LLC on the App Store. See screenshots, ratings and reviews, user tips, and more apps like Idle Reporter…

17. Whitesmiths C compiler: One of the earliest commercial C compilers available (github.com)

Whitesmiths C compiler. One of the earliest commercial C compilers available. - hansake/Whitesmiths-C-compiler

21. US embassy wants 'every social media username of past five years' for new visas (www.thejournal.ie)

The move has been heavily criticised by Taoiseach Micheál Martin who described it as “excessive”.

22. Using Home Assistant, adguard home and an $8 smart outlet to avoid brain rot (www.romanklasen.com)

Preamble# The internet is the bane of my existence. Ads, distractions, sponsored content, bad news, bad ideas, more ads, social media, antisocial media, even more ads. Also, I’m a software developer, so the internet is basically indispensable for me, a central pillar of my income and a convenient way to communicate with friends, family, loved ones, associates, acquaintances, people from my sports club, superpositions of all previous groups and enemies alike. And I think my company runs ads, so in a way ads pay for my clothing and food and stuff. So I guess my current stance towards the internet would be somewhat neutral-ish, but that may still change.

25. Why do all browsers' user agents start with "Mozilla/"? (2008) (stackoverflow.com)

All popular browsers' user agent strings, even Internet Explorer's, start with Mozilla/. Why is this the case?

26. Polystate: Composable Finite State Machines (github.com)

Build type-safe finite state machines with higher-order states. - sdzx-1/polystate

27. Typr – TUI typing test with a word selection algorithm inspired by keybr (github.com)

TUI typing test with a word selection algorithm inspired by keybr - Sakura-sx/typr

28. The X Window System didn't immediately have X terminals (utcc.utoronto.ca)

Chris Siebenmann 在2026年3月29日的文章中描述,由于Cloudflare worker在2026年不被真人使用且经常用于恶意目的,他阻止了来自这种HTTP请求的访问。具体来说,他禁止Cloudflare worker访问自己的博客“Wandering Thoughts”和关联的CSpace wiki系统,以防止潜在的安全风险。

29. Modeling the World in 280 Characters (tympanus.net)

An exploration of the mindset, methods, and motivations behind crafting tiny, expressive shaders that combine code, art, and constraint.

30. Nano-Vllm: Lightweight vLLM implementation built from scratch (github.com)

Nano vLLM. Contribute to GeeeekExplorer/nano-vllm development by creating an account on GitHub.

31. Backlash to artificial dye grows as Kraft ditches coloring for Kool-Aid, Jell-O (www.washingtonpost.com)

Kraft Heinz says it will stop using artificial food dyes by 2027, replacing them with natural versions or taking other steps, amid pressure from Robert F. Kennedy Jr.