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Today Nvidia has just reached the market value of $5Trillion. Both Microsoft and Apple have the market value of $4T. Gold return just above the mark of $4000/ounce. On October 29, 2025, the Federal Reserve lowered its benchmark interest rate by 0.25 percentage points, bringing the target range to 3.75% - 4.00%. This marks the second rate cut of the year, following a similar reduction in September. Economic Conditions: The Fed cited moderate economic expansion but noted that job gains have slowed and the unemployment rate has slightly increased. ...

T to S and S to L = sex is the drive of life, testosterone is the drive of sex Here are two articles on testosterone: Apr 30, 2025 web archive: Testosterone gave me my life back Oct 22, 2025 web archive: Testosterone is giving women back their sex drive Just as estrogen is a crucial hormone for men, testosterone is an important hormone for women, instrumental in the development of bones, muscles and sexual function. Testosterone peaks in women in their late teens and early 20s, then declines over time, so that by age 60, their levels have fallen by about half. (Men start out in young adulthood with 10 times the testosterone of women, and their levels diminish much less steeply over time.) ...

Current stock market with AI bubble is much hotter than that dot-com one. Everyone knows that it is going to burst. Just do not know exactly when. Meme stocks come back again with the gold price stumbles (down 3.8% below $4100/ounce). What does this mean? (Meme stock is just a new form of old trick, short squeeze. Wall Street or not, the initiators get the profit.) Greedy and more greedy. Speculations and more speculations. The crash of the stock market is close. ...

CS DIY UC Berkeley CS61A: SICP in python etc. MIT SICP CS61A repo CS61A repo2 open source computer science DIY Book: A philosophy of software design, John Ousterhout, 2018 How to design software systems to minimize their complexity. When developing a module, look for opportunities to take a little bit of extra suffering upon yourself in order to reduce the suffering of your users. it’s more important for a module to have simple interface than a simple implementation ...

fast-forward time 时间像流水，有时快有时慢。不信？那就去看看落基山上的岩石，层层叠叠的纹路有疏有密。小时候，做饭用煤，生炉子是个技能，旧报纸或木屑片。然后换成煤气罐，再后来就是埋在地下的管道天然气，直到现在的电磁炉。另外一个例子就是电话费和电话。小时打个电话到学校门房，才有人叫。长途电话费奇贵，也不是什么电话都可以拨长途，我曾经专门去邮电局去拨打国际长途。然后，电话家家有，手机人人拿，大哥大变小变薄，按键变触屏。诺基亚1011在1992年出现，黑莓在2000年后开始流行，而第一个iPhone在2007年横空出世。我们这个时代是不是按下了快进键？ autumn leaves gone 天气变冷，早上有霜，抬头也只看到一个月牙儿。第一场雪已经下过，薄薄得一层，太阳一出来就化了。灿烂的秋叶早就让风吹散了。 time and desire 前两天看到朱熹的两句诗，“世路无如人欲险，几人到此误平生。“忽然想到，时间和欲望才是我们终极的对手。 we see what we could see, at most an image of the world 比利时画家雷内·马格利特（René Magritte）画过一个烟斗，并在画的下面写着“这不是一个烟斗”。（Ceci n’est pas une pipe）我们当然知道那不是烟斗，而是一副烟斗的画。但是我们或许从来没有看到自我，而只是镜中的影像。我们不知道一个事物本身，而只是看到了它的影像。我们或许不知道一件事物，而只是知道了它的名称。这就像地图并非实际的疆域。 Martin Luther King Jr. Cowardice asks the question, “Is it safe?” Expediency asks the question, “Is it politic?” Vanity asks the question, “Is it popular?” But, conscience asks the question, “Is it right?” And there comes a time when one must take a position that is neither safe, nor politic, nor popular, but one must take it because one’s conscience tells one that it is right. ...

DNS request, any DNS server, by default DNS is using UDP $dig http418.org ; <<>> DiG 9.10.6 <<>> http418.org ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 2570 ;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 1 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4000 ;; QUESTION SECTION: ;http418.org. IN A ;; ANSWER SECTION: http418.org. 300 IN A 172.67.133.121 http418.org. 300 IN A 104.21.5.131 ;; Query time: 77 msec ;; SERVER: 10.6.205.11#53(10.6.205.11) ;; WHEN: Fri Oct 17 09:50:33 MDT 2025 ;; MSG SIZE rcvd: 72 $dig @40.115.144.198 http418.org ; <<>> DiG 9.10.6 <<>> @40.115.144.198 http418.org ; (1 server found) ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 25726 ;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 1 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 1224 ;; QUESTION SECTION: ;http418.org. IN A ;; ANSWER SECTION: http418.org. 300 IN A 104.21.5.131 http418.org. 300 IN A 172.67.133.121 ;; Query time: 191 msec ;; SERVER: 40.115.144.198#53(40.115.144.198) ;; WHEN: Fri Oct 17 09:53:28 MDT 2025 ;; MSG SIZE rcvd: 72 $dig @40.115.144.198 http418.org +tcp ; <<>> DiG 9.10.6 <<>> @40.115.144.198 http418.org +tcp ; (1 server found) ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 62006 ;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 1 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 1224 ;; QUESTION SECTION: ;http418.org. IN A ;; ANSWER SECTION: http418.org. 148 IN A 172.67.133.121 http418.org. 148 IN A 104.21.5.131 ;; Query time: 116 msec ;; SERVER: 40.115.144.198#53(40.115.144.198) ;; WHEN: Fri Oct 17 09:56:00 MDT 2025 ;; MSG SIZE rcvd: 72 Xray config to set up a proxy server as DNS server with port 53 exposed. ...

There is a strange error Error: "Unrecognized ABI" when downloading UF2 to the pico board. So a total re-installation after removing both .cargo and .rustup directories. install rust $ curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh install for some embedded targets $ rustup target add thumbv6m-none-eabi $ rustup target add thumbv7m-none-eabi $ rustup target add thumbv8m.main-none-eabi $ rustup target add thumbv8m.main-none-eabihf then install cargo-binutils $ cargo install cargo-binutils Installed package `cargo-binutils v0.4.0` (executables `cargo-cov`, `cargo-nm`, `cargo-objcopy`, `cargo-objdump`, `cargo-profdata`, `cargo-readobj`, `cargo-size`, `cargo-strip`, `rust-ar`, `rust-as`, `rust-cov`, `rust-ld`, `rust-lld`, `rust-nm`, `rust-objcopy`, `rust-objdump`, `rust-profdata`, `rust-readobj`, `rust-size`, `rust-strip`) In the end, it seems that the latest rust is in use somehow. ...

hannah arendt “Totalitarianism in power invariably replaces all first-rate talents, regardless of their sympathies, with those crackpots and fools whose lack of intelligence and creativity is still the best guarantee of their loyalty.” — Hannah Arendt, The Origin of Totalitarianism the future computers there are two types of computers, general and customized. both laptops and severs belong to the former. phones, washing machines, microwave, even cars belong to the latter. you are either a user or a programmer, or both. there are an obvious gap between users and programmers. the question here is if we could remove that gap? ...

Never fight an inanimate object. – P. J. O’Rourke (1947-2022) poem: Salute by James Schuyler Salute by James Schuyler Past is past, and if one remembers what one meant to do and never did, is not to have thought to do enough? Like that gather- ing of one each I planned, to gather one of each kind of clover, daisy, paintbrush that grew in that field the cabin stood in and study them one afternoon before they wilted. Past is past. I salute that various field. Capitalism without democracy Supreme Oligarchy: How Billionaires and the Supreme Court are Betraying the Promise of America - “Author, broadcaster and scholar Thom Hartmann warns of the existential threat of a virulent new oligarchy: the third frontal assault by the ultra-wealthy in American history to use their concentrated economic power to seize maximum political power—and overthrow democracy once and for all.” ...

this essay by Lewis Hyde, The Geological sublime: butterflies, deep time, and climate change from Harper’s July 2025 Issue is really great. It is not inadmissible to think of an epoch . . . not too far distant, when humanity, to ensure its survival, will find itself reduced to desisting from any further “making” of history. — Mircea Eliade That mountain (Oat Mountain) sits in southern California’s Transverse Ranges, which began their rise from the sea about 5 million years ago, having first been caught, some 15 million years earlier, between tectonic plates that spun them clockwise so they now sit at right angles to the coast. The geology of the Transverse Ranges consists largely of granite from the Mesozoic Era—66 to 252 million years ago—with some even earlier Precambrian material, at least 1.6 billion years old. ...