2025-04-06

30 篇热帖

1. The Llama 4 herd (ai.meta.com)

We’re introducing Llama 4 Scout and Llama 4 Maverick, the first open-weight natively multimodal models with unprecedented context support and our first built using a mixture-of-experts (MoE) architecture.

2. What If We Made Advertising Illegal? (simone.org)

What if we banned all advertising? Not regulate it—abolish it. This proposal would transform manipulation machines, and maybe save democracy itself. A thought experiment worth considering.

3. Self-Driving Teslas Are Fatally Rear-Ending Motorcyclists More Than Any Other (fuelarc.com)

Among motorcyclists, there is a persistent rumor that Teslas are dangerous to ride around in traffic. Whether it’s their silent electric drivetrain, extreme acceleration, or self-driving technology supposedly failing to see motorcycles, every biker seems to know someone who’s had a close call with a Tesla. Our new analysis of data from the NHTSA on […]

5. The ADHD body double: A unique tool for getting things done (add.org)

ADHD“身体双重策略”:一种独特的任务完成工具

核心概念

“身体双重策略”是一种针对ADHD(注意力缺陷多动障碍)人群的生产力方法。其核心是在完成可能令人厌烦或难以开始的任务时,让另一个人在场陪伴。这个人被称为“身体双重”,其作用是帮助ADHD个体保持专注、减少分心并提升动力。该策略的名称和具体描述源于ADHD教练Linda Anderson与其客户David的共同实践。

运作机制

该策略的实践很简单:

  1. 寻找伙伴:邀请家人、朋友、同事或通过在线平台匹配的陌生人作为“身体双重”。
  2. 共同在场:双方约定时间,在一起工作(可以是面对面或线上),但不要求做同一件事,各自专注于自己的任务(如家务、付费、工作项目)。
  3. 分享目标:在开始前,告知“身体双重”你的任务目标,以增加责任感。
  4. 保持独立:“身体双重”的角色是安静地保持在场,提供一种平静、专注的存在感,而不是指导、协助或交谈,以免造成额外分心。

效果与理论基础

尽管缺乏严格的科学研究证实,但许多实践者报告其有效。可能的解释包括:

  • 增加责任感与动力:他人的在场创造了一种温和的“被观察”压力,让人觉得不能浪费这段共同的时间,从而更愿意启动并坚持任务。
  • 镜像效应:ADHD个体可能无意识地模仿“身体双重”专注工作的状态,从而帮助自己集中注意力。这被称为“ADHD镜像”,但与为掩盖症状而模仿他人的消耗性模仿不同,此处的镜像在特定情境下可能有益。
  • 能量平衡(气/Chi):从能量角度理解,“身体双重”可能有助于平衡个人与工作空间的能量,提供一个缓冲,抵御外部干扰,稳定ADHD大脑易受干扰的能量场。

主要益处

  • 提升专注力与减少拖延:外部存在感促使个体保持正轨,更容易开始任务。
  • 增强时间管理:通过预约专属的“共同工作”时段,减少时间浪费。
  • 改善情绪:支持性的陪伴能减少压力,营造积极的工作氛围。
  • 提高生产力:在专注和动力提升的情况下,可以在更短时间内完成更多工作。

如何有效实施

  1. 选择合适的伙伴:寻找能够安静、独立工作的人。理想的人选不会与你互动,以免分散你的精力。
  2. 灵活选择形式
    • 时间:可以尝试不同时段,找到对自己最有效的时间。
    • 时长:可以选择较长的工作时段,或穿插休息的短时会议(如结合番茄工作法)。
    • 方式:支持面对面或线上形式。线上可通过Zoom等工具开启摄像头,或使用专注力应用程序(如FocusMate)匹配虚拟伙伴。
  3. 寻找途径
    • 现实社交圈:朋友、家人、邻居、教会成员或退休人员。
    • 在线平台:专门的生产力配对网站或应用程序。
    • 支持小组:如ADDA(注意力缺陷障碍协会)组织的在线同辈支持小组,常将身体双重策略与其他时间管理技巧结合。

总结

“身体双重策略”是一种基于实践经验的、利用外部存在感来对抗ADHD相关注意力分散、动力不足和拖延问题的简单工具。它通过提供一种非侵入性的问责制和专注环境模型,帮助ADHD个体更有效地管理任务。虽然其背后的确切科学原理尚未完全明确,但其实践效果已被许多人认可,成为管理ADHD症状和提升日常生产力的实用技巧之一。

6. Ten Rules for Negotiating a Job Offer (haseebq.com)

When the story of how I landed a job at Airbnb went viral, I was surprised at how infatuated people were with my negotiations. Media stories portrayed me as some kind of master negotiator—a wily ex...

7. Video footage appears to contradict Israeli account of Gaza medic killings (www.bbc.com)

视频证据似乎与以色列对加沙医护人员遇袭事件的解释相矛盾

核心事件

  • 时间:2025年3月23日
  • 事件:以色列军方向一支载有医护人员和民防人员的车队(包括救护车和消防车)开火,造成15名救援人员死亡。
  • 关键证据:一段来自遇难护理人员手机的新视频。

视频内容与以色列说法冲突

  • 视频显示:车辆在黑暗中行驶,车灯和紧急闪烁灯均开启,车辆停下后,至少两名身穿反光衣的急救人员下车,随后发生持续数分钟的枪击。视频拍摄者(一名遇难护理人员)在枪击中祈福。
  • 以色列军方最初说法:否认涉事车辆开启车灯或紧急信号灯。
  • 以色列军方最新回应:表示将彻底审查所有主张,包括相关视频,以了解事件经过。

当事方证词

  • 幸存护理人员蒙特尔·阿贝德证词:救护车标识明显,车内外灯均开启,直至遭到直接射击。他和同事均为平民,与任何武装组织无关。
  • 以色列外长吉德昂·萨尔此前声明:重申军方说法,称“以色列国防军并非随意袭击救护车”。

遗体发现与调查

  • 15名遇难者(8名巴勒斯坦红新月会护理人员、6名加沙民防人员、1名联合国雇员)的遗体与损坏的车辆一同被发现埋于沙坑中,距事发已一周。国际组织经数日谈判才获准安全进入现场。
  • 目前仍有一名护理人员下落不明。

国际反应与呼吁

  • 巴勒斯坦红新月会:已将视频提交联合国安理会。其主席尤尼斯·哈提卜博士呼吁对此“残暴罪行”进行问责和独立彻底调查。
  • 以色列军方立场:声称事件中击毙了哈马斯和伊斯兰圣战组织成员,但未提供证据或进一步解释其部队所面临的威胁。
8. Deleting multiplayer from the Unreal engine can save memory (larstofus.com)

Although the title of this article might suggest otherwise, I don't dislike Unreal's multiplayer features. As someone who has worked on two different multiplayer games in Unreal, I enjoy Unreal's seamless multiplayer integration. It's built deep into the engine instead of being moved to an optional plugin like so many other features. You can test…

9. SeedLM: Compressing LLM Weights into Seeds of Pseudo-Random Generators (machinelearning.apple.com)

Large Language Models (LLMs) have transformed natural language processing, but face significant challenges in widespread deployment due to…

10. North America Is Dripping from Below, Geoscientists Discover (www.jsg.utexas.edu)

A figure from the study showing rock dripping from the craton. The researchers hypothesize that the dripping is caused by…

11. Neutron Stars Hint at Another Dimension (nautil.us)

Are the mysterious stars clues to one of the greatest mysteries in the universe?

12. Apple's Darwin OS and XNU Kernel Deep Dive (tansanrao.com)

A deep dive into Apple’s Darwin OS and XNU kernel architecture, tracing its evolution from Mach and BSD roots to powering macOS, iOS, and Apple Silicon. This post explores the hybrid kernel’s design, its adaptation to new hardware and security paradigms, and why XNU remains a uniquely resilient and scalable foundation for Apple’s platforms.

14. How the Atlantic's Jeffrey Goldberg Got Added to the White House Signal Chat (www.theguardian.com)

Internal investigation cleared the national security adviser Mike Waltz, but the mistake was months in the making

15. The Insanity of Being a Software Engineer (0x1.pt)

Is something I think about often because I can’t help but wonder if most other jobs are like this.

17. Why Do Domestic Prices Rise with Tarriffs? (marginalrevolution.com)

Many people think they understand why domestic prices rise with tariffs–domestic producers take advantage of reduced competition to jack up prices and increase their profits. The explanation seems cynical and sophisticated and its not entirely wrong but it misses deeper truths. Moreover, this “explanation” makes people think that an appropriate response to domestic firms raising […]

18. Dynamic Register Allocation on AMD's RDNA 4 GPU Architecture (chipsandcheese.com)

Modern GPUs often make a difficult tradeoff between occupancy (active thread count) and register count available to each thread.

19. Show HN: I built a Rust crate for running unsafe code safely (github.com)

A Rust crate for containing memory leaks and fragmentation - brannondorsey/mem-isolate

20. A year of Rust in ClickHouse (clickhouse.com)

This story is about how ClickHouse supports Rust components in the C++ code base and the challenges we had to overcome.

21. Linux Kernel Defence Map – Security Hardening Concepts (github.com)

Linux Kernel Defence Map shows the relationships between vulnerability classes, exploitation techniques, bug detection mechanisms, and defence technologies - a13xp0p0v/linux-kernel-defence-map

22. Faster interpreters in Go: Catching up with C++ (planetscale.com)

A novel technique for implementing dynamic language interpreters in Go, applied to the Vitess SQL evaluation engine

23. The Greatest Motorcycle Photo (www.life.com)

Not only did Rollie Free set the world speed record for a motorcycle back in 1948—he looked darn good doing it. The key to setting the record for Free was cutting down on wind resistance. So when the 47-year-old accelerated his Vincent HRD Black Shadow, he positioned his body to be as horizontal as it ... Read more

25. We are still using 88x31 buttons (ultrasciencelabs.com)

introduction If you surf the modern "small web" to any extent you've encountered 88x31 buttons - a staple of late 90s and early 2000's websites under…

27. PiDP-1, or the rebirth of an old machine (hackaday.io)

<p>In other words, we increased the number of PDP-1s ever produced by 10% in two days :-)</p><figure><img data-src="https://cdn.hackaday.io/images/6350471743876089180.jpeg&#34; class="lazy"></figure><p>Lots of polishing up still two do. We&apos;re hiding from the world for two weeks to get it all done. Probably &lt;i&gt;almost&lt;/i&gt; all done. &lt;i&gt;Mostly done.&lt;/i&gt;</p>

29. Llama 4 Now Live on Groq (groq.com)

Experience Llama 4’s blazing-fast Scout and Maverick models, low-cost AI inference on GroqCloud. Launch smarter apps instantly—try Llama 4 now.