Reading Pachiko

Pachiko is not a story but a historical summary of Korean Japanese from 1910 to 1989. It reminds me of blacks in USA, Malays in Singapore, and all minority migrants in the Western countries. Darwin’s natural selection is never about the fitness but the changes and the adaptation. Man will never change but be forced to change. That is the natural selection in human history. States, institutions like schools, police, courts, and many others are just ideas. Men believe in ideas. ...

October 7, 2022 · 2 min · un01s

how to update to a new ESP-IDF release

To run esp privilege separation, have to update esp-idf to v4.4.2. This kernel-user application was announced several months ago. Just notice it today. It adds to another new option for WM. $ cd $IDF_PATH $ git fetch $ git checkout v4.4.2 $ git submodule update --init --recursive $ ./install.sh $ . ./export.sh After the update, have to patch esp-idf for esp-privilege-separation. $ cd $IDF_PATH $ git apply -v ../esp-privilege-separation/idf-patches/privilege-separation_support_v4.4.2.patch Then run the blink example inside esp-privilege-separation repo. $ idf.py set-target esp32c3 $ idf.py menuconfig $ idf.py build $ idf.py -p /dev/tty.SLAB_USBtoUART flash monitor Here is the log. ...

September 25, 2022 · 4 min · un01s

break through

[2022-09-17] Finally got something wireless & audio working on esp32. This is just a start. [2022-10-16] The proof of concept works seamlessly. Two parts, each works and both work together with no problem. Next step, hardware design and more bug fixes.

September 17, 2022 · 1 min · un01s

Loneliness

An excerpt from Deleuze on Godard. I can tell you how I think of Godard. He’s a man who works very hard, and it follows that he is completely alone. But this loneliness is not the common sort: it’s filled by a huge assortment of things. Not dreams, fantasies or projects, but actions, things and even people. It is a many-faceted, creative loneliness. It’s what lies behind Godard’s ability to operate powerfully on his own, but also as part of a team. He can deal on equal terms with anyone, with big organizations or the powers that be, with a cleaning lady, a manual worker or the insane. In the television programmes, Godard’s questions are always straight. They trouble us, the viewers, but not the people they are addressed to. He speaks to the insane in a way which is not that of a psychiatrist or that of a fellow madman or someone pretending to be one. He speaks with workers without being a a boss or another worker or an intellectual or a film director with actors. This is not because he can switch his manner to suit the occasion, because he is a skillful operator, but because his loneliness somehow opens him up to anyone and everything. In a way, it’s always a question of stammering. ...

September 12, 2022 · 2 min · un01s

interesting stuff

For the first time someone complained that I swam too fast 记得以前看过一篇文章说游得好自然就快。我不知道自己游得好不好,反正并不快,所以一直在慢的泳道。大学时学会游泳,以前常游。后来有些时间没有条件,也没有时间。最近这段时间我已经坚持游了有近十年,快慢不论,体力还是有的。 120-year-old singing bird It’s amazing like a real bird chirp. Horace Mann Die Gewohnheit ist ein Seil. Wir weben jeden Tag einen Faden, und schließlich können wir es nicht mehr zerreißen. The habit is a rope. We weave a thread every day, and finally we can’t tear it apart anymore. 如果文化也如绳索,一丝一缕不断编织,到头来坚韧如枷锁难以断开。 Theodor W Adorno Kunst ist Magie, befreit von der Lüge, Wahrheit zu sein. ...

September 10, 2022 · 1 min · un01s

Quine program

Definition of Quine A quine program, or quine, is a program that outputs its own source code when runs without taking any input. It is called self-replicating program. Quines are possible in any Turing-complete programming language, as direct consequence of Kleene’s rescursion theorem. Detour Quine’s paradox on self-reference. "Yields falsehood when preceded by its quotation" yields falsehood when preceded by its quotation. Another paradox: If the human brain were so simple that we could understand it, we would be so si mple that we couldn't. - Emerson M. Pugh Another amusing quote: ...

September 4, 2022 · 1 min · un01s

2022-09-03 tetsuji

news: too many books published According to the Penguin Random House/S&S antitrust trial it was revealed that out of 58,000 trade titles published per year, half of those titles sell fewer than one dozen books. 90 percent of titles sell fewer than 2,000 units. video game music archive Garageband can play the mid file. tetsuji Something interesting … reference bootNoodle 2020 janus: a polyglot binary for BGGP 2021 remote code execution on a Gameboy Colour Binary Golf Association BGGP 2021 github

September 3, 2022 · 1 min · un01s

认清形势放弃幻想并不容易

book review Read a review on the last days of Sigmund Freud, its sideline goes like: danger surrounded Freud in Nazi-occupied Austria, why did it take him so long to see it? The book by Andrew Nagorski, Saving Freud: the rescuers who brough him to freedom, offered to tackle this question in 1938. Whatever controversy brought by psychoanalysis, Freud knew the dark undercurrent of human behavior and he was critical of the false security offered by our wishful illusions. As an expert of human nature, he was unable to think clearly when his coutry became so unrecognizable around him. These cognition bias are built-in. What is our chance if we are in the similar situation? ...

September 1, 2022 · 2 min · un01s

science, value

the value of science In 1955 Richard Feynman (1918-1988) had one essay, The Value of Science, published in Volume XIX of Engineering and Science. My favorite quote from Feynman is as follows: ** Science is a way of trying not to fool yourself. The first principle is that you must not fool yourself, and you are the easiest person to fool. ** Carl Sagan in his book, The demon-haunted world, said something similar: ...

August 30, 2022 · 14 min · un01s

语言和世界

words and the world The true alchemists do not change lead into gold; they change the world into words. – William Gass (1924-2017) 语言一如迷雾又如谜语,是一面镜子照见了当下,是一张照片抓住了某时某地某事。语言能够做到的不过是记录偌大世界一个人的一个瞬间,其他的一切不过是我们的想象而已。语言是虚构宇宙的一切。

August 26, 2022 · 1 min · un01s