{c}

https://cirosantilli.com/linux-kernel-module-cheat/\#p51 (https://raw.githubusercontent.com/cirosantilli/linux-kernel-module-cheat/a0d6fa15a207cb40cd8ce090c77aa9b55d7605a6/README.adoc[permalink])

* battery life:
  * 2023-04: on-browser streaming + light browsing on <Ubuntu 22.10>: about 2h45. Too low! Gotta try buying a new battery.
* 2022-01-04 updated firmward after noticing that <ubuntu 21.10 does not wake up from suspend> seemed to happen every time when not connected to external power. `dmidecode` diff excerpt:
  ``
   BIOS Information
          Vendor: LENOVO
  -       Version: N1UET40W (1.14 )
  -       Release Date: 09/28/2017
  +       Version: N1UET71W (1.45 )
  +       Release Date: 07/18/2018
  ``
  used the "Ubuntu Software" GUI as mentioned at: https://support.lenovo.com/gb/en/solutions/ht510810-how-to-do-software-updates-linux[]. Kudos for making this accessible to newbs.

  After doing that, another update became available to: 0.1.56, clicked it and was much faster than the previous one, and didn't auto reboot. After manual reboot, `dmidecode` diffed again:
  ``
   BIOS Information
          Vendor: LENOVO
  -       Version: N1UET71W (1.45 )
  -       Release Date: 07/18/2018
  +       Version: N1UET82W (1.56 )
  +       Release Date: 08/12/2021
  ``
  plus a bunch of other lines.
* 2021-06-05 upgraded to <Ubuntu> 21.04 with a clean install from an ISO. Selected
  * "Minimal installation"
  * "Erase disk and install Ubuntu". Notably, this erased the <Microsoft Windows> that came with the computer and was never used not even once
  * "Erase disk ans use ZFS"
  * Encrypt the new Ubuntu installation for security
  After this, the GUI felt fast, who would have thought that erasing a bunch of stuff would make the system faster!

  `lsblk` contains:
  ``
  zd0               230:0    0   500M  0 disk
  └─keystore-rpool  253:0    0   484M  0 crypt /run/keystore/rpool
  nvme0n1           259:0    0 476.9G  0 disk
  ├─nvme0n1p1       259:1    0   512M  0 part  /boot/efi
  ├─nvme0n1p2       259:2    0     2G  0 part
  │ └─cryptoswap    253:1    0     2G  0 crypt
  ├─nvme0n1p3       259:3    0     2G  0 part
  └─nvme0n1p4       259:4    0 472.4G  0 part
  ``
  and `lsblk -f`:
  ``
  zd0               crypto_LUKS 2
  └─keystore-rpool  ext4        1.0   keystore-rpool
  nvme0n1
  ├─nvme0n1p1       vfat        FAT32
  ├─nvme0n1p2       crypto_LUKS 2
  │ └─cryptoswap
  ├─nvme0n1p3       zfs_member  5000  bpool
  └─nvme0n1p4       zfs_member  5000  rpoo
  ``

  Then:
  ``
  grep '[rb]pool' /proc/mounts
  ``
  contains:
  ``
  rpool/ROOT/ubuntu_uvs1fq / zfs rw,relatime,xattr,posixacl 0 0
  rpool/USERDATA/ciro_czngbg /home/ciro zfs rw,relatime,xattr,posixacl 0 0
  rpool/USERDATA/root_czngbg /root zfs rw,relatime,xattr,posixacl 0 0
  rpool/ROOT/ubuntu_uvs1fq/srv /srv zfs rw,relatime,xattr,posixacl 0 0
  rpool/ROOT/ubuntu_uvs1fq/usr/local /usr/local zfs rw,relatime,xattr,posixacl 0 0
  rpool/ROOT/ubuntu_uvs1fq/var/games /var/games zfs rw,relatime,xattr,posixacl 0 0
  rpool/ROOT/ubuntu_uvs1fq/var/log /var/log zfs rw,relatime,xattr,posixacl 0 0
  rpool/ROOT/ubuntu_uvs1fq/var/lib /var/lib zfs rw,relatime,xattr,posixacl 0 0
  rpool/ROOT/ubuntu_uvs1fq/var/mail /var/mail zfs rw,relatime,xattr,posixacl 0 0
  rpool/ROOT/ubuntu_uvs1fq/var/snap /var/snap zfs rw,relatime,xattr,posixacl 0 0
  rpool/ROOT/ubuntu_uvs1fq/var/www /var/www zfs rw,relatime,xattr,posixacl 0 0
  rpool/ROOT/ubuntu_uvs1fq/var/spool /var/spool zfs rw,relatime,xattr,posixacl 0 0
  rpool/ROOT/ubuntu_uvs1fq/var/lib/AccountsService /var/lib/AccountsService zfs rw,relatime,xattr,posixacl 0 0
  rpool/ROOT/ubuntu_uvs1fq/var/lib/NetworkManager /var/lib/NetworkManager zfs rw,relatime,xattr,posixacl 0 0
  rpool/ROOT/ubuntu_uvs1fq/var/lib/apt /var/lib/apt zfs rw,relatime,xattr,posixacl 0 0
  rpool/ROOT/ubuntu_uvs1fq/var/lib/dpkg /var/lib/dpkg zfs rw,relatime,xattr,posixacl 0 0
  bpool/BOOT/ubuntu_uvs1fq /boot zfs rw,nodev,relatime,xattr,posixacl 0 0
  ``
  which gives an idea of how the above map to mountpoints.

  Had two GUI freezes since installation, a fixed images shows no matter what I do, possibly graphics only, but impossible to tell (next time I'll try SSH access). No <Nvidia> drivers installed yet.

2020-06-06: dropped some lemon juice on the bottom left of touchpad. Bottom left button not working anymore... I'm an idiot. There are many other alternatives, but very aggravating, I'll replace it for sure. Can't find the exact replacement part or any videos showing its replacement online easliy, dang. For the T430: https://www.youtube.com/watch?v=F3lzV9uXRjU Asked at: https://forums.lenovo.com/t5/ThinkPad-P-and-W-Series-Mobile-Workstations/P51-left-bottom-button-below-trackpad-mouse-left-click-stopped-working-possible-to-replace/m-p/5019903 Also I could not access it because you need to remove the HDD first: https://www.youtube.com/watch?v=5Klawxc7T_Y and I can't pull it out even with considerable force, unlike in the video... And OMG, those button caps are impossible to re-install once removed!!! Then when I put the whole thing back together, the upper buttons were not working anymore. FUUUUUUUUCK. When first opening I pulled on it without properly removing the cap and it came off, but it didn't look broken in any way and I put it back in. Keyboard works thank God, so right black connector is fine, left white one oppears to be the one for upper keys and trackpoint, both of which stopped working. The hardware manual confirms that they are both part of the same device, so basically a mouse :-) TODO can it be bought separately from te keyboard? Doesn't look like it, photo of keyboard part includes those buttons. The manual also confirms that the bottom buttons are one device with the trackpad "trackpad with buttons", thus forming the second entire mouse.

2019-04-17: popup asking about "ThinkPad P51 Management Engine Update" from from 182.29.3287 to 184.60.3561, said yes.

<Ubuntu> 17.10 setup after buying it:

* partition setup: https://askubuntu.com/questions/343268/how-to-use-manual-partitioning-during-installation/976430\#976430
* BIOS:
  * for NVIDIA driver:
  * for KVM, required by Android Emulator: enable virtualization extensions
* TODO fix the brightness keys:
  * failed: https://askubuntu.com/questions/769006/brightness-key-not-working-ubuntu-16-04-lts/770100\#770100

Battery life shown by Ubuntu battery app after installation:

* before NVIDIA driver setup: 8h
* after: 6.5h


Lenovo ThinkPad P51 (2017) log

Command line utility

Information

Data

Self-driving car

Synthetic data

Test data 14

{title2=三西猴的主页}

Check out: \b[https://ourbigbook.com], a <personal knowledge base> that can publish from <lightweight markup> both to a multi-user \b[<mind melding>] dynamic website, or as a <static website>. It's like \b[<Wikipedia> + <GitHub> + <Stack Overflow> + <Obsidian (software)>]. Source code: \b[https://github.com/ourbigbook/ourbigbook].

<sponsor>[Sponsor me to work on this project]: 100k <USD> = I quit me job and work on it one year full time. Status: \b[~144k / 200k USD] reached: 1st year locked-in, 2nd year stretch goal open at 200k USD. How to donate: <sponsor>{full}.

I reached \b[100k USD] after a <sponsor/1000 Monero donation>, so I'll quit my job for 1 year starting Summer 2024 to solve as many <STEM> courses as I can from a world leading university to try and kickstart \b[The Higher Education Revolution]. If I reach \b[200k USD], then I'll do it for two years instead. A second year greatly improve chances of success: year one I solve a bunch of courses, year two I come guns blazing with the content and expand further.

\b[Mission]: to live in a world where you can learn <university>-level <mathematics>, <physics>, <chemistry>, <biology> and <engineering> from perfect free <open source> books that anyone can write to get famous. More rationale: <OurBigBook.com>{full}

<Ciro Santilli's documentation superpowers>[Explaining things is my superpower], e.g. I was top user \#39 on <Stack Overflow> in 2023https://stackexchange.com/leagues/1/year/stackoverflow/2023-01-01{ref}<Ciro Santilli's Stack Overflow contributions>{ref} and I have a few 1k+ star educational <GitHub> repositorieshttps://github.com/cirosantilli/linux-kernel-module-cheat{ref}<Linux Kernel Module Cheat>{ref}https://github.com/cirosantilli/x86-bare-metal-examples{ref}https://github.com/search?o=desc&q=user%3Acirosantilli&s=stars&type=Repositories{ref}. Now I want to bring that level of awesomeness to <Master's degree>[masters level] <Mathematics> and <Physics>. But I can't do it alone! So I created <OurBigBook.com> to allow everyone to work together towards the perfect book of everything.

My life's goal is to bring hardcore <university>-level <STEM> <open educational content> to all ages. Sponsor me at https://github.com/sponsors/cirosantilli[] starting from 1<Dollar>[[$]]/month so I can work full time on it. Further information: <sponsor>{full}. Achieving what I call "<free gifted education>" is my <Nirvana>.

<Ciro Santilli's website>[This website] is written in <OurBigBook Markup>, and it is published on both https://cirosantilli.com (<static website>) and https://outbigbook.om/cirosantilli (multi-user <OurBigBook Web> instance). Its <source code> is located at: https://github.com/cirosantilli/cirosantilli.github.io[] and https://cirosantilli.com/_dir[also at `cirosantilli.com/_dir`] and it is <licensed> under <CC BY-SA 4.0> unless otherwise noted.

To contact Ciro, see: <contact>{full}. He likes to talk with random people of the <Internet>.

https://github.com/cirosantilli[GitHub] |
https://stackoverflow.com/users/895245[Stack Overflow] |
https://www.linkedin.com/in/cirosantilli[LinkedIn] |
https://www.youtube.com/c/CiroSantilli[YouTube] |
https://twitter.com/cirosantilli[Twitter] |
https://en.wikipedia.org/wiki/User:Cirosantilli2[Wikipedia] |
https://www.zhihu.com/people/cirosantilli/activities[Zhihu 知乎] |
https://www.weibo.com/p/1005055601627311[Weibo 微博] |
<accounts>[Other accounts]

\image[https://raw.githubusercontent.com/cirosantilli/media/master/ID_photo_of_Ciro_Santilli_taken_in_2013.jpg]{height=300}
\image[https://raw.githubusercontent.com/cirosantilli/media/master/Ciro_Santilli's_learn_teach_apply_logo.png]{height=300}

Besides that, I'm also a <Ciro Santilli's campaign for freedom of speech in China>[freedom of speech] <slacktivist> and <Ciro Santilli's cycling>[recreational cyclist]. Opinions are my own, but they could be yours too.

Let's <the ideal university>[create an educational system] with:
* no distinction between <university> and <high school>, <students must have a flexible choice of what to learn>[students just go as fast as they can to what they really want] without stupid <university entry exams>
* <OurBigBook.com>[fully open source learning material]
* <exam as a service>[on-demand examinations that anyone can easily take without prerequisites]
* <the only reason for universities to exist should be the laboratories>[granular entry selection only for space in specific laboratories] or participation in specific <novel research> projects

\b[I offer]:
* online private tutoring for:
  * any <STEM> university course
  * passionate younger <STEM> students (any age) who want to learn university level material and beyond. Can your kid be the next <Fields Medalist> or <Nobel Prize> winner? I'm here to help, especially if you are filthy rich! I focus <Students must be allowed to progress as fast as they want>[moving students forward as fast as they want] on and on <how to teach/Projects must aim for novelty>[producing useful novel tutorials and results]
* educational consulting for institutions looking to improve their <STEM> courses
  * do you know \i[that] course or teacher that consistently gets bad reviews every year? I'll work with the teacher to turn the problem around!
  * are you looking to create a consistent <open educational resources> offering to increase your institutions internationally visibility? I can help with that too.

My approach is to:
* propose interesting research projects. The starting point is always deciding the end goal: <backward design>{full}
* learn what is needed to do the project together with the student(s)
* publish any novel results or tutorials/tools produced <freely licensed> online, and encourage the student to do the same (<how to teach/Let students learn by teaching>{full}, <digital garden>)
For minors, parents are welcome to join video calls, and all interactions with the student will be recorded and made available to parents.

I have <articles>[a proven track of explaining complex concepts in an interesting and useful way]. I work for the learner. Teaching statement at: <How to teach>{full}. Pricing to be discussed. Contact details at: <How to contact Ciro Santilli>{full}.

I am particularly excited about pointing people to the potential <next big things>, my top picks these days are:
* <quantum computing>
* <AGI research>
* assorted <molecular biology technologies>

\Image[https://stackoverflow.com/users/flair/895245.png?theme=dark]
{disambiguate=home}
{height=150}
{title=<Ciro Santilli>'s amazing <Stack Overflow> profile}
{description=Ciro contributes almost exclusively by answering question he <Googles> into out of his own need, and never by refreshing the newest question of big tags for low hanging fruit! More information at: <Ciro Santilli's Stack Overflow contributions>{full}.}
{link=https://stackoverflow.com/users/895245}

\Video[https://www.youtube.com/watch?v=BR2dXeR5jt8]
{disambiguate=home}
{height=500}
{title=Intro to the <OurBigBook Project>}

\Video[https://www.youtube.com/watch?v=54nxjC9BWTg]
{disambiguate=home}
{height=700}
{width=700}
{title=<OurBigBook Web> topics demo}
{description=The <OurBigBook topic feature> allows users to "merge their minds" in a "sort by upvote"-stack overflow-like manner for each subject. This is the killer feature of <OurBigBook Web>. More information at: https://docs.ourbigbook.com/ourbigbook-web-topics[].}

\Video[https://www.youtube.com/watch?v=sX_D_5tCQgg]
{height=700}
{width=700}
{title=<OurBigBook> dynamic article tree demo}
{description=The <OurBigBook dynamic tree> feature allows any of your headers to be the toplevel `h1` header of a page, while still displaying its descendants. <SEO> loves this, and it also allows users to always get their content on the correct granularity. More information at: https://docs.ourbigbook.com/ourbigbook-web-dynamic-article-tree[].}

\Video[https://www.youtube.com/watch?v=Ghvlztiu6rI]
{height=720}
{width=720}
{title=<OurBigBook> local editing and publishing demo}
{description=With <OurBigBook> you can store your content as plaintext files in a <Lightweight markup>, and then publish that to either <OurBigBook.com>  to get awesome multi-user features, or as a <static website> where you are in full control. More information at: https://docs.ourbigbook.com/publish-your-content[].}

\Video[https://youtube.com/watch?v=j_fl4xoGTKU]
{disambiguate=home}
{height=500}
{title=Top Down <2D continuous game> with <Urho3D> <C++> <SDL> and <Box2D> for <Reinforcement learning> by <Ciro Santilli> (2018)}
{description=More information: <Ciro's 2D reinforcement learning games>{full}. This is Ciro's underwhelming stab at the fundamental question: <Can AGI be trained in simulations?>. This project <todo>[could be taken much further].}

\Video[https://www.youtube.com/watch?v=P7-OYQatYvA]
{disambiguate=home}
{height=500}
{title=<Water Margin> tribute to <Chinese> dissidents by <Ciro Santilli> (2022)}
{description=Part of <Ciro Santilli's campaign for freedom of speech in China>, see also: https://cirosantilli.com/china-dictatorship/water-margin[].}

\Image[https://raw.githubusercontent.com/cirosantilli/media/master/lenovo-thinkpad-t430-bios-hello-world.jpg]
{height=500}
{title=<Lenovo> <ThinkPad> T430 running a <BIOS> <hello world>}
{description=Source code: https://github.com/cirosantilli/x86-bare-metal-examples[]. Ciro's <Linux Kernel Module Cheat> is a closely related and much more important project that covers the <Linux kernel> and <assembly language>.}

``
 -------------------------------------
|  Force of Will               3 U U  |
|  ---------------------------------  |
| |                  ////////////   | |
| |                ////() ()\////\  | |
| |               ///_\ (--) \///\  | |
| |        )      ////  \_____///\\ | |
| |       ) \      /   /   /    /   | |
| |    ) /   \     |   |  /   _/    | |
| |   ) \  (  (   /   / /   / \     | |
| |  / ) ( )  / (    )/(    )  \    | |
| |  \(_)/(_)/  /UUUU \  \\\/   |   | |
| .---------------------------------. |
| Interrupt                           |
| ,---------------------------------, |
| | You may pay 1 life and remove a | |
| | blue card in your hand from the | |
| | game instead of paying Force of | |
| | Will's casting cost.  Effects   | |
| | that prevent or redirect damage | |
| | cannot be used to counter this  | |
| | loss of life.                   | |
| | Counter target spell.           | |
| `---------------------------------` |
|                                     l
| Illus.  Terese Nelsen               |
 -------------------------------------
``
{title=<ASCII art> of https://gatherer.wizards.com/Pages/Card/Details.aspx?multiverseid=413591[Force of Will] <Magic: The Gathering> card <inscribed (Blockchain)> in the <Bitcoin blockchain>}
{description=
Artist unknown, uploaded December 2014. Part of <Cool data embedded in the Bitcoin blockchain>{full} where <Ciro Santilli> maintains a curated list of such interesting inscriptions.

This was a small project done by Ciro for <artistic> purposes that received some attention due to the incredible hype surrounding <cryptocurrencies> at the time. <Ciro Santilli>'s views on  <cryptocurrencies> are summarized at: <Are cryptocurrencies useful?>{full}.
}

\Image[https://web.archive.org/web/20220102092623im_/http://bitfossil.org/4cbb32cd27b5b5edc12d3559bdffc1355ac2a210463d5cfaadc7ce9b06675b2b/YellowRobot.jpg]
{disambiguate=index}
{height=600}
{title=`YellowRobot.jpg`}
{description=
<JPG> image fully embedded in the <Bitcoin blockchain> depicting some kind of cut material art depicting a yellow robot, <inscription (Blockchain)>[inscribed] on https://www.blockchain.com/explorer/transactions/btc/4cbb32cd27b5b5edc12d3559bdffc1355ac2a210463d5cfaadc7ce9b06675b2b[January 29, 2017].

<Ciro Santilli> found this image and others during his research for <Cool data embedded in the Bitcoin blockchain>{full} by searching for image fingerprints on every transaction payload of the blockchain with a script.

The image was uploaded by <EMBII>, co-creator of the <cool data embedded in the bitcoin blockchain/AtomSea & EMBII> upload mechanism, which was responsible for a large part of the image <inscription (Blockchain)>[inscriptions] in the <Bitcoin blockchain>.

The associated message reads:
\Q[Chiharu \[<EMBII>'s Japanese wife\] and I found this little yellow robot while exploring Chicago. It will be covered by tar or eventually removed but this tribute will remain. N 41.880778 E -87.629210]
This is one of <Ciro Santilli>'s favorite AtomSea & EMBII uploads, as it perfectly encapsules the "medium as an artform" approach to blockchain art, where even non-novel works can be recontextualized into something interesting, here depicting an opposition between the ephemeral and the immutable.

At https://twitter.com/EMBII4U/status/1615389973343268871 <EMBII> announced that he would be giving off shares of that image on <Sup!? (Bitcoin-based social media)>, a <Bitcoin>-backed <NFT> system he was; making. In December 2023, he gave some shares of the robot to <Ciro Santilli>.
}
{source=http://bitfossil.org/4cbb32cd27b5b5edc12d3559bdffc1355ac2a210463d5cfaadc7ce9b06675b2b/index.htm}

\Image[https://raw.githubusercontent.com/cirosantilli/media/master/cia-2010-covert-communication-websites/screenshots/starwarsweb.net.jpg]
{disambiguate=index}
{height=1400}
{title=2010 <Wayback Machine> archive of https://web.archive.org/web/20101230033220/http://starwarsweb.net/[starwarsweb.net]}
{description=
This website was used as one of the <CIA 2010 covert communication websites>, a covert system the <CIA> used to communicate with its assets. More details at: <CIA 2010 covert communication websites>{full}.

<Ciro Santilli> had some <Ciro Santilli's naughty projects>[naughty OSINT fun] finding some of the websites of this defunct network in 2023 after he heard about https://www.reuters.com/investigates/special-report/usa-spies-iran/[the 2022 Reuters report on the matter], which for the first time gave away 7 concrete websites out of a claimed 885 total found. As of November 2023, Ciro had found about 350 of them.
}

\Image[https://raw.githubusercontent.com/cirosantilli/media/master/cia-2010-covert-communication-websites/screenshots/noticiasmusica.net.jpg]
{disambiguate=index}
{height=1400}
{title=2010 <Wayback Machine> archive of https://web.archive.org/web/20101230165001/http://noticiasmusica.net/[noticiasmusica.net]}
{description=
This is another website that was used as one of the <CIA 2010 covert communication websites>. This website is written in <Brazilian Portuguese>, and therefore suggests that the <CIA> had assets in <Brazil> at the time, and thus was spying on a "fellow democracy".

Although <Snowden>'s revelations made it extremely obvious to the world that the USA spies upon everyone outside of the <Five Eyes>, including fellow democracies, it is rare to have such a direct a concrete proof of it visible live right on the <Wayback Machine>. Other targeted democracies include <France>, <Germany>, <Italy> and <Spain>. More details at: <cia 2010 covert communication websites/USA spying on its own allies>.
}

\Image[https://raw.githubusercontent.com/cirosantilli/media/master/Diagram_of_the_fundamental_theorem_on_homomorphisms_with_subtitles.svg]
{disambiguate=index}
{height=800}
{title=Diagram of the <fundamental theorem on homomorphisms> by <Ciro Santilli> (2020)}
{description=
Shows the relationship between <group homomorphisms> and <normal subgroups>.

Used in the <Stack Exchange> answer to https://math.stackexchange.com/questions/776039/intuition-behind-normal-subgroups/3732426\#3732426[What is the intuition behind normal subgroups?] One of <articles>{full}.
}

\Image[https://raw.githubusercontent.com/cirosantilli/media/master/Faster_than_light_implies_time_travel_diagram.svg]
{disambiguate=articles}
{height=600}
{title=<Spacetime diagram> illustrating how <faster-than-light> travel implies time travel by <Ciro Santilli> (2021)}
{description=Used in the <Stack Exchange> ansewr to https://physics.stackexchange.com/questions/13001/does-superluminal-travel-imply-travelling-back-in-time/615079\#615079[Does faster than light travel imply travelling back in time?]. One of <articles>{full}.}

\Image[https://raw.githubusercontent.com/cirosantilli/media/master/C++_Heap_vs_BST_vs_hash_map_insert_time.png]
{height=1000}
{title=Average insertion time into heaps, <binary search tree> and <hash maps> of the <#C++ standard library> by <Ciro Santilli> (2015)}
{description=Used in the <Stack Overflow> answer to https://stackoverflow.com/questions/6147242/heap-vs-binary-search-tree-bst/29548834\#29548834[Heap vs Binary Search Tree (BST)]. One of <articles>{full}.}
{{source=https://stackoverflow.com/questions/6147242/heap-vs-binary-search-tree-bst/29548834#29548834}}

\Video[https://www.youtube.com/watch?v=84ig5cih4kI]
{title=<Birch and Swinnerton-Dyer conjecture in two minutes by Ciro Santilli>}
{description=Quick and direct explanation of the statement of the <BSD Conjecture> for people who know basic university mathematics. This is one of the <Millennium Prize Problems>, and you will get a million dollars if you can solve it! This therefore falls in the <Simple to state but hard to prove> of <Ciro Santilli>'s <the beauty of mathematics> aesthetics.}

A quick <2D continuous AI game> prototype for <reinforcement learning> written in <Matter.js>, you can view it on a separate page at https://cirosantilli.com/_raw/js/matterjs/examples.html\#top-down-asdw-fixed-viewport[]. This is a for-fun-only prototype for <Ciro's 2D reinforcement learning games>, <C++> or maybe <Python> (for the <deep learning> ecosystem) seems inevitable for a serious version of such a project. But it is cute how much you can do with a few lines of <Matter.js>!

\passthrough[[<iframe src="_raw/js/matterjs/examples.html#top-down-asdw-fixed-viewport" width="1000" height="850"></iframe>]]


Index

{wiki}

Here's an example of the chain rule. Suppose we want to calculate:
$$
\dv{e^2x}{x}
$$
So we have:
$$
f(x) = e^x \\
g(x) = 2x
$$
and so:
$$
f'(x) = e^x \\
g'(x) = 2
$$
Therefore the final result is:
$$
f'(g(x))g'(x) = e^{2x} 2 = 2 e ^{2x}
$$


Chain rule

{c}

* you don't get any/sufficient recognition for your contributions. The closest they have to upvotes and reputation is the incredibly obscure "thank" feature which is only visible to the receiver itself: https://en.wikipedia.org/wiki/Help:Notifications/Thanks
* <deletionism> is a tremendous problem on Wikipedia, for two main causes:
  * tutorial-like subjectivity
  * notability
  The stuff you wrote can be deleted anytime by some random admin/opposing editor, examples at: <deletionism on Wikipedia>{full}.

  This also possibly leads to <Edit wars> in the case of sub-page content (full page deletion is more clearly arbitrated).
* Scope too limited, and politics defined. Everything has to sound encyclopedic and be notable enough. This basically excludes completely good tutorials.
* Insane impossible to use <markup language>-base talk pages instead of issue trackers?! Ridiculous!!! That change alone could make Wikipedia so much more amazing. Wikipedia could become a Stack Exchange killer by doing that alone + some basic reputation system. Some work on that is being done at: https://www.mediawiki.org/wiki/Extension:DiscussionTools[], already in Beta as of 2022.
* <Edit wars>


Wikipedia

{c}
{title2=2001}
{wiki}

Why Wikipedia sucks: <ourbigbook com/Wikipedia>{full}.

Best languages:
* https://en.wikipedia.org/wiki/Latin_Wikipedia[latin]
* https://en.wikipedia.org/wiki/Esperanto_Wikipedia[esperanto]. Other constructed languages: https://en.wikipedia.org/wiki/Wikipedia:List_of_constructed_languages_with_Wikipedias

The most important page of Wikipedia is undoubtedly: https://en.wikipedia.org/wiki/Wikipedia:Reliable_sources/Perennial_sources which lists the accepted and non accepted sources. Basically, the decision of what is true in this world.

Wikipedia is incredibly picky about copyright. E.g.: https://en.wikipedia.org/wiki/Wikipedia:Deletion_of_all_fair_use_images_of_living_people because "such portrait could be created". Yes, with a time machine, no problem! This does more harm than good... excessive!

Citing in Wikipedia is painful. Partly because of they have a billion different templates that you have to navigate. They should really have a system where you can easily reuse existing sources across articles! <How to use a single source multiple times in a Wikipedia article?>{full}

\Video[https://www.youtube.com/watch?v=_Rt0eAPLDkM]
{title=What Happened To Wikipedia's Founders?}
{description=
* https://youtu.be/_Rt0eAPLDkM?t=113 encyclopedia correction stickers. OMG!
* https://youtu.be/_Rt0eAPLDkM?t=201 Jimmy was a moderator on <MUD (game genre)> games
}

\Video[https://www.youtube.com/watch?v=j9-CovbP-7U]
{title=Inside the Wikimedia Foundation offices by <Wikimedia Foundation> (2008)}


Liked	Liked By	Title	Discussions	Created	Updated
2023-02-12	Satoshi Nakamoto 0	Lenovo ThinkPad P51 (2017) log	0	1970-01-01	1970-01-01
2023-02-12	Satoshi Nakamoto 0	Command line utility	0	1970-01-01	1970-01-01
2023-02-12	Satoshi Nakamoto 0	Information	0	1970-01-01	1970-01-01
2023-02-12	Satoshi Nakamoto 0	Data	0	1970-01-01	1970-01-01
2023-02-12	Satoshi Nakamoto 0	Self-driving car	0	1970-01-01	1970-01-01
2023-02-12	Satoshi Nakamoto 0	Synthetic data	0	1970-01-01	1970-01-01
2023-02-12	Satoshi Nakamoto 0	Test data 14	0	1970-01-01	1970-01-01
2023-02-06	effendy 0	Index	1	1970-01-01	1970-01-01
2023-01-13	Barack Obama 11	Chain rule	0	1970-01-01	1970-01-01
2022-11-29	rtnf 1	Wikipedia	1	1970-01-01	1970-01-01
2022-11-29	rtnf 1	Wikipedia	0	1970-01-01	1970-01-01
2022-11-23	anynomous8kahlgajkqiujlg 0	Test data 9	0	1970-01-01	1970-01-01

Ciro Santilli (@cirosantilli, 32)