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IQ is supposed to measure intelligence, but does it? Head to

to start your free 30-day trial, and the first 200 people get 20% off an annual premium subscription. If you’re looking for a molecular modeling kit, try Snatoms – a kit I invented where the atoms snap together magnetically –

▀▀▀ A huge thank you to Emeritus Professor Cecil R. Reynolds and Dr. Stuart J. Ritchie for their expertise and time. Also a massive thank you to Prof. Steven Piantadosi and Prof. Alan S. Kaufman for helping us understand this complicated topic. As well as to Jay Zagrosky from Boston University's Questrom School of Business for providing data from his study. ▀▀▀ References: Kaufman, A. S. (2009). IQ testing 101. Springer Publishing Company. Reynolds, C. R., & Livingston, R. A. (2021). Mastering modern psychological testing. Springer International Publishing. Ritchie, S. (2015). Intelligence: All that matters. John Murray. Spearman, C. (1961). " General Intelligence" Objectively Determined and Measured. -

Binet, A., & Simon, T. (1907). Le développement de l'intelligence chez les enfants. L'Année psychologique, 14(1), 1-94.. -

Intelligence Quotient, Wikipedia -

Radiolab Presents: G. -

McDaniel, M. A. (2005). Big-brained people are smarter: A meta-analysis of the relationship between in vivo brain volume and intelligence. Intelligence, 33(4), 337-346. -

Deary, I. J., Strand, S., Smith, P., & Fernandes, C. (2007). Intelligence and educational achievement. Intelligence, 35(1), 13-21. -

Lozano-Blasco, R., Quílez-Robres, A., Usán, P., Salavera, C., & Casanovas-López, R. (2022). Types of Intelligence and Academic Performance: A Systematic Review and Meta-Analysis. Journal of Intelligence, 10(4), 123. -

Kuncel, N. R., & Hezlett, S. A. (2010). Fact and fiction in cognitive ability testing for admissions and hiring decisions. Current Directions in Psychological Science, 19(6), 339-345. -

Laurence, J. H., & Ramsberger, P. F. (1991). Low-aptitude men in the military: Who profits, who pays?. Praeger Publishers. -

Gregory, H. (2015). McNamara's Folly: The Use of Low-IQ Troops in the Vietnam War; Plus the Induction of Unfit Men, Criminals, and Misfits. Infinity Publishing. Gottfredson, L. S., & Deary, I. J. (2004). Intelligence predicts health and longevity, but why?. Current Directions in Psychological Science, 13(1), 1-4. -

Sanchez-Izquierdo, M., Fernandez-Ballesteros, R., Valeriano-Lorenzo, E. L., & Botella, J. (2023). Intelligence and life expectancy in late adulthood: A meta-analysis. Intelligence, 98, 101738. -

Zagorsky, J. L. (2007). Do you have to be smart to be rich? The impact of IQ on wealth, income and financial distress. Intelligence, 35(5), 489-501. -

Strenze, T. (2007). Intelligence and socioeconomic success: A meta-analytic review of longitudinal research. Intelligence, 35(5), 401-426. -

Deary, I. J., Pattie, A., & Starr, J. M. (2013). The stability of intelligence from age 11 to age 90 years: the Lothian birth cohort of 1921. Psychological science, 24(12), 2361-2368. -

Flynn, J. R. (1987). Massive IQ gains in 14 nations: What IQ tests really measure. Psychological bulletin, 101(2), 171. -

Why our IQ levels are higher than our grandparents' | James Flynn, TED via YouTube -

Duckworth, A. L., Quinn, P. D., Lynam, D. R., Loeber, R., & Stouthamer-Loeber, M. (2011). Role of test motivation in intelligence testing. Proceedings of the National Academy of Sciences, 108(19), 7716-7720. -

Kulik, J. A., Bangert-Drowns, R. L., & Kulik, C. L. C. (1984). Effectiveness of coaching…

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to get a 30-day free trial. The first 200 people will get 20% off their annual subscription. ------------------------------------------------------- Today we're looking at HyperLogLog, an algorithm that leverages random chance to count the number of distinct items are in a dataset. It does this by tracking the longest run of zeros in a binary sequence, and uses that as an estimate of cardinality. HLL is a probabilistic algorithm, meaning it's a guess rather than true answer. But due to some clever tricks it is usually within 2% of the correct value, and can do it both quickly and in a memory-efficient manner. A 512kb datastructure can accurately process trillions of items and terrabytes of data, which is pretty impressive! When I made this video, I didn't realize that another #SoME3 was in progress. But a bunch of viewers suggested I enter the video, so I guess this is will be part of the event! ---------------------- 🔬Patreon if that's your jam:

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---------------------- Journal papers: Flajolet, Philippe, et al. "Hyperloglog: the analysis of a near-optimal cardinality estimation algorithm." _Discrete Mathematics and Theoretical Computer Science_. Discrete Mathematics and Theoretical Computer Science, 2007.

Heule, Stefan, Marc Nunkesser, and Alexander Hall. "Hyperloglog in practice: Algorithmic engineering of a state of the art cardinality estimation algorithm." _Proceedings of the 16th International Conference on Extending Database Technology_. 2013.

Earlier work: Durand, Marianne, and Philippe Flajolet. "Loglog counting of large cardinalities." _Algorithms-ESA 2003: 11th Annual European Symposium, Budapest, Hungary, September 16-19, 2003. Proceedings 11_. Springer Berlin Heidelberg, 2003. Flajolet, Philippe, and G. Nigel Martin. "Probabilistic counting algorithms for data base applications." _Journal of computer and system sciences_ 31.2 (1985): 182-209. Articles: -

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I use the draw.io desktop app to make diagrams for my website. I run it on an actual desktop, like Windows or macOS, but the asset pipeline that converts .drawio files, to ...

ChatGPT 已经火了好几个月了，从发布的第一天开始，就有人说它的写稿能力特别强，自媒体小编要失业了……事关饭碗，不可小觑！于是柴司的策划偷偷氪金，用最先进的 GPT-4 引擎写了一篇稿子后，决定做一支视频，讲一讲他都经历了什么～ ChatGPT has been popular for several months. From the first day of its release, some people said that its writing ability is particularly strong, and the self-media editor is about to lose his job... It's about work, so don't underestimate it! So our planner paid secretly, and after using the most advanced GPT-4 engine to write a manuscript, he decided to make a video to talk about what he went through~ 实时更新，欢迎订阅！Real-time updates. Subscribe! ▶

🎥柴知道热门视频🔥 【为什么你的头会秃成M、C、U型？丨Why is your head bald into M, C, U shape?】

【搜索引擎怎么搜不到信息了？| Why can't search engine find information?】

【蓝牙怎么这么多毛病还依然长盛不衰？丨Why is Bluetooth still popular with so many problems?】

【贵的保温杯是不是智商税？| Is the expensive vacuum flask an IQ tax?】

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============= 一起在知识的海洋里狗刨吧~Let's play together in the ocean of knowledge~ #柴知道 #ChaiKnows #chatgpt

This post will be a bit all over the place. Several months ago, I wrote Hard Mode Rust, exploring an allocation-conscious style of programming. In the ensuing discussion, @jamii name-dropped TigerBeetle, a reliable, distributed, fast, and small database written in Zig in a similar style, and, well, I now find myself writing Zig full-time, after more than seven years of Rust. This post is a hand-wavy answer to the why? question. It is emphatically not a balanced and thorough comparison of the two languages. I haven't yet written my 100k lines of Zig to do that. (if you are looking for a more general what the heck is Zig, I can recommend @jamii's post). In fact, this post is going to be less about languages, and more about styles of writing software (but pre-existing knowledge of Rust and Zig would be very helpful). Without further caveats, let's get started.

Because of my open inbox, I meet a lot of strangers. I love it. Almost everyone tells me who and where they are in the world. If they don’t, I wonder.