Threads
Brief thoughts.
January 2025
When Chinese people become famous, they sell products on Douyin(tiktok);
When Americans become famous, they issue cryptocurrency (referring to Donald Trump);
One reflects the characteristics of industrial nations with overproduction;
One reflects the characteristics of financial nations with excess capital;
December 2024
Gallium nitride (GaN) is a byproduct of aluminum, and obtaining gallium requires extensive aluminum smelting. A deindustrialized country simply cannot produce gallium, nor can it manufacture GaN chargers.
October 2024
One of the biggest YouTubers, MrBeast, often changes the titles of his past videos. This practice serves two main purposes:
1. Testing YouTube's recommendation algorithm: By altering the titles, he can observe how the videos perform in the recommendation system, thus gaining a better understanding of how the algorithm works.
2. Optimizing view counts: Based on the test results, he can identify title formats that attract more clicks from viewers, thereby increasing the overall viewership of the videos.
The Survivorship Bias originates from complex statistical analysis rather than simple inference. The original paper is [Abraham Wald's Work on Aircraft Survivability](https://www.jstor.org/stable/2288257), which can also be found [here](https://people.ucsc.edu/~msmangel/Wald.pdf).
Small samples are more likely to exhibit extreme outcomes compared to large samples, known as the "law of small numbers."
This phenomenon is described in the book "Thinking, Fast and Slow." The book gives an example where in statistical data, rural areas might show both the highest and lowest rates of pancreatic cancer incidence. This is because small sample sizes are more susceptible to random fluctuations, leading to seemingly contradictory extreme results.
September 2024
“Les affaires humaines sont souvent ainsi : sur le moment, on a l’impression que c’est insupportable, mais quelques années plus tard, ce n’est plus qu’un souvenir.”
— Cœur brûlé et autres romances, Jean-Marie Gustave Le Clézio
August 2024
“On ne peut jouir de la vie qu’avec ceux qu’on est sûr de quitter bientôt.”
— Pierre Choderlos de Laclos, Les Liaisons dangereuses