2025-08-17

36 篇热帖

1. Sunny days are warm: why LinkedIn rewards mediocrity (www.elliotcsmith.com)

I, like many people, find LinkedIn particularly annoying. I like the premise of it, don’t get me wrong, a resume you don’t need to update all that often seems cool. Unfortunately though, its turned into the worst possible version of itself. It’s a place where people post

6. Show HN: NextDNS Adds "Bypass Age Verification"
NextDNS 添加了一项名为“绕过年龄验证”的新功能,允许用户通过DNS技巧规避成人网站的年龄验证检查,避免上传政府ID等个人证件,从而保护用户隐私。这一举措获得了部分社区用户的赞赏,认为它积极抵制了日益普遍的隐私侵犯行为。

然而,社区也存在担忧。一些用户认为该功能可能不会长期有效,甚至可能促使监管机构采取更严厉的措施。关于技术实现,用户推测NextDNS可能是通过伪造EDNS客户端子网(EDNS Client Subnet)信息,欺骗网站认为用户来自无年龄验证要求的国家;或者通过代理服务器将用户的连接路由至其他地区,但具体方法尚未由官方公开说明。

讨论远不止于绕过色情网站验证。许多评论指出了年龄验证政策更深层的影响:
*   **隐私与监控**:要求上传ID被广泛视为一个“隐私噩梦”,并可能成为政府大规模监控的工具,其目标可能是去匿名化所有互联网用户,而非仅限于限制色情内容。
*   **监管范围**:法律可能被用来限制更多类型的内容,例如涉及暴力、LGBTQ+话题或政治敏感信息的网站,而不仅仅是成人内容。
*   **家长责任**:有观点认为,保护儿童应是家长的责任,技术强制验证是将育儿责任转嫁给社会和监管机构。但也有人反驳,认为家长无法24小时监控,社会也需承担一定责任。

在用户反馈方面,尽管有用户表示NextDNS服务稳定、性价比高,但也有相当数量的用户报告称服务存在严重问题,如功能区块列表过时、客户支持缺失、服务中断且修复缓慢。许多失望的用户已转向AdGuard DNS或ControlD等替代方案。

法律层面,特别是针对英国市场的讨论指出,英国《在线安全法案》禁止要求进行年龄验证的平台鼓励使用VPN绕过检查。不过有用户指出,该禁令主要针对特定平台内容,DNS服务提供商如NextDNS可能并不直接受此限制。

最后,关于功能有效性,有用户测试后发现该功能未能成功绕过PornHub等网站的验证。其具体技术原理和影响范围仍是社区好奇和猜测的焦点。
7. Node.js can now execute TypeScript files (nodejs.org)

Node.js® is a free, open-source, cross-platform JavaScript runtime environment that lets developers create servers, web apps, command line tools and scripts.

10. Wan – Open-source alternative to VEO 3 (github.com)

Wan: Open and Advanced Large-Scale Video Generative Models - Wan-Video/Wan2.2

11. Derivatives, Gradients, Jacobians and Hessians (blog.demofox.org)

This article explains how these four things fit together and shows some examples of what they are used for. Derivatives Derivatives are the most fundamental concept in calculus. If you have a function, a derivative tells you how much that function changes at each point. If we start with the function $latex y=x^2-6x+13$, we can…

12. Electricity prices are climbing more than twice as fast as inflation (www.npr.org)

Electricity prices are rising more than twice as fast as overall inflation. That's especially costly during the dog days of summer when air conditioners are working hardest. In addition to hot weather, a variety of factors are causing power bills to climb, including the high cost of natural gas used to generate electricity and soaring demand from data centers.

13. IQ Tests Results for AI (www.trackingai.org)

Tracking AI is a cutting-edge application that unveils the IQ Scores of frontier artificial intelligence models. Explore and analyze the IQ Scores of AIs with our intuitive platform, designed to foster transparency in the world of artificial intelligence. Stay informed and uncover the IQs shaping the algorithms behind the technology revolution.

17. Who does your assistant serve? (xeiaso.net)

Anubis是一个服务器保护系统,旨在防御AI公司的大规模网页爬取行为,防止因爬虫导致网站资源不可访问。它采用基于Hashcash的工作量证明(Proof-of-Work)机制,在单个用户层面增加的计算负载可忽略不计,但对大规模爬虫会显著提高成本,从而限制其爬取效率。该系统目前作为临时解决方案,以争取时间开发更精准的指纹识别技术(如通过字体渲染检测无头浏览器),未来可能避免向合法用户显示挑战页面。使用Anubis时需注意:它依赖现代JavaScript功能,因此需禁用JShelter等可能禁用JavaScript的插件,以确保系统正常运行。

18. Faster Index I/O with NVMe SSDs (www.marginalia.nu)

The Marginalia Search index has been partially rewritten to perform much better, using new data structures designed to make better use of modern hardware. This post will cover the new design, and will also touch upon some of the unexpected and unintuitive performance characteristics of NVMe SSDs when it comes to read sizes. The index is already fairly large, but can sometimes feel smaller than it is, and paradoxically, query performance is a big part of why. If each query has a budget of 100-250ms, a design that finds and ranks results faster in that time period will produce better search results. There are other limitations as well, query understanding is still somewhat limited, where only minor changes to a query can unearth dozens of new related results.

19. X-ray scans reveal Buddhist prayers inside tiny Tibetan scrolls (www.popsci.com)

The objects were a part of traditional Mongolian nomadic shrines.

21. Apple's new Processor Trace instrument is incredible (victorwynne.com)

Apple Processor Trace 工具摘要

核心功能与价值

Apple 在 Xcode 中新增的 Processor Trace 工具能捕获代码在 CPU 层面做出的每一个分支决策,并提供完整的执行流程可视化。与依赖统计采样的传统分析器不同,它提供应用执行流的完整记录,帮助开发者精准定位性能问题根源(如分支预测错误、缓存未命中),而非仅提示某个函数运行缓慢。

与现有工具的对比

  • 传统分析器(如 Time Profiler):基于统计采样,只能提供近似线索,难以深入解释 CPU 行为。
  • Intel VTune Profiler:虽能进行详细的硬件级分析,但工具复杂、学习曲线陡峭,且不适用于 Apple Silicon 开发流程。
  • Processor Trace 优势:深度集成于 Xcode 生态,专为 Apple 硬件设计,将复杂的处理器行为转化为开发者易理解的洞察,便于优化。

使用限制与前景

  • 硬件要求:仅支持 M4 芯片iPhone 16 设备,旧设备无法使用。
  • 实用性验证:早期测试表明,该工具能发现其他工具遗漏的性能瓶颈,但对日常工作流的实际效益仍需观察。
  • 开发者价值:为解决高层性能分析与底层调试之间的空白提供了可能,但最终是否成为开发必备工具,取决于具体需求。
25. US state department stops issuing visas for Gaza’s children to get medical care (www.theguardian.com)

Program providing key aid halted after complaints from Laura Loomer, the far-right influencer close to Trump

27. Tversky Neural Networks (gonzoml.substack.com)

Psychologically Plausible Deep Learning with Differentiable Tversky Similarity

28. Living with Williams Syndrome, the 'opposite of autism' (2014) (www.bbc.com)

One in 18,000 people in the UK have Williams Syndrome, meaning they are empathetic and friendly, but can have learning disabilities and anxiety.

29. Dispelling misconceptions about RLHF (aerial-toothpaste-34a.notion.site)

A collaborative AI workspace, built on your company context. Build and orchestrate agents right alongside your team's projects, meetings, and connected apps.

30. A Lisp in 99LOC (github.com)

Lisp in 99 lines of C and how to write one yourself. Includes 21 Lisp primitives, garbage collection and REPL. Includes tail-call optimized versions for speed and reduced memory use. - Robert-van-Engelen/tinylisp

31. Lessons learned from building a sync-engine and reactivity system with SQLite (www.finkelstein.fr)

This post distills the minimal sync engine and BroadcastChannel-powered reactivity that I built to power the offline-first E2E encrypted Interleave application.

32. Pirate library operator arrested, study canceled for 330k members (torrentfreak.com)

Yubin Archive's mission to "eliminate educational inequality" in South Korea, by providing free access to expensive books, appears to be over.

33. Israeli gov. official arrested in Nevada internet crimes against children sting (www.theguardian.com)

Tom Artiom Alexandrovich was released and returned to Israel after being charged with luring a child for a sex act

36. Office on HP-UX and Unix (www.openpa.net)

Office suites for HP-UX and PA-RISC were developed in the mid-1990s to fill the gap between technical engineering and integration into the wider office environment.