Updates Updated +Created
Giant magnetoresistance Updated +Created
Video 1.
Introduction to Spintronics by Aurélien Manchon (2020) giant magnetoresistance section
. Source.
Describes how giant magnetoresistance was used in magnetoresistive disk heads in the 90's providing a huge improvement in disk storage density over the pre-existing inductive sensors
GitHub Updated +Created
This is where Ciro Santilli stored his code since he started coding nonstop in 2013.
He does not like the closed source aspect of it, but hey, there are more important things to worry about, the network effect is just too strong.
But which commit from master did we conflict with exactly? Updated +Created
git rebase does not tell you that, and that sucks.
We only know which commit from the feature branch caused the problem.
Generally we can guess or it is not needed, but imerge does look promising: stackoverflow.com/questions/18162930/how-can-i-find-out-which-git-commits-cause-conflicts
Oh, but there are 2 trees: local and remote Updated +Created
Oh but there are usually 2 trees: local and remote.
So you also have to learn how to observe and modify and sync with the remote tree!
But basically:
git fetch
to update the remote tree. And then you can use it exactly like any other branch, except you prefix them with the remote (usually origin/*), e.g.:
  • origin/master is the latest fetch of the remote version of master
  • origin/my-feature is the latest fetch of the remote version of my-feature
PayPal founder Updated +Created
Peter Thiel Updated +Created
Search engine optimization Updated +Created
gitk Updated +Created
Figure 1.
gitk 2.34.1 running on Ubuntu 22.04 with a simple repository.
GNOME Chess Updated +Created
The user friendly Chess UI! Exactly what you would expect from a GNOME Project package. But also packs some punch via the Universal Chess Interface, e.g. Stockfish just works.
GNU Chess Updated +Created
Both chess engine and a CLI chess UI. As an engine it is likely irrelevant compared to Stockfish as of 2020. TODO: does the UI support Universal Chess Interface?
Cool project history though. Started before the GNU Project itself, and became one of the first packages.
GNU Privacy Guard Updated +Created
Generate public private key, test encrypt and test decrypt:
# Create your pubkey.
gpg --gen-key
gpg --armor --output pubkey.gpg --export <myemail>

# Encrypt using someone's pubkey.
gpg --import pubkey2.gpg
echo 'hello world' > hello.txt
gpg --output hello.txt.gpg --encrypt --recipient <other-email> hello.txt

# Double check it is not plaintext in the encrypted message.
grep hello hello.txt.gpg

# Decrypt.
gpg --output hello.decrypt.txt --decrypt --recipient <myemail> hello.txt.gpg
diff -u hello.decrypt.txt hello.txt
List of personal knowledge base software Updated +Created
TODO look into those more:
Major downsides that most of those personal knowledge databases have:
  • very little/no focus on public publishing, which is the primary focus of OurBigBook.com
  • either limited or no multiuser features, e.g. edit protection and cross user topics
  • graph based instead of tree based. For books we need a single clear ordering of a tree. Graph should come as a secondary thing through tags.
Closed source dump:
1000 Monero donation Updated +Created
On 2024-03-18, Ciro Santilli received an anonymous 1000 Monero donation (worth ~126k USD at the time) to his self-custody wallet, which pushed him over his public plea for 100k USD goal to quit his job for one year.
The transaction ID was 5c6af4df39021f3a4a053ef169c9b397e6d6bf6c7e557d3f08e4e1675d7d3eed to self hist custody wallet with address 47kzoCeRMTohJhADejtsGmGimvQKzNsuST7u2aVhAD1VX5WDbh3v1FPUoJoTK3NTJVUgAM3dWCqC4Tmp9KSQaJi6GGYWgYn. This is a roof generated by his Monero wallet: InProofV2AVFBmFhofH4GoG5NsaDutkdNWRTaEhuFgHpHTkpprRmuZ54B8FdUwFp71gqfp2jJpDUrhB3GCzZ2p8CNbh2TW1Z88ShmYWEwtkZFLccEMw9PhH3vWcMVo9mKaRsH3WgJXqq9.
Since this donation is so huge, it deserves some comments and a bit of a retrospective. The path to this donation has been an interactive one, and it is described below.
After starting the OurBigBook Project, Ciro started the sponsor Ciro Santilli's work on OurBigBook.com page on cirosantilli.com and setup some donation methods to help support the project, and possibly try to capitalize a bit on Ciro Santilli's Stack Overflow contributions.
His sponsors are absolutely crazy amazing people, but Ciro simply could attract a large enough amount of small sponsors to reach life changing amounts under those circumstances. This is partly due to Video "And I am not and never have been 'familiar' scene from The Big Short (2015)".
As such, Ciro came to realize more and more that the best approach would be to reach out to a smaller number of rich people, given that the things he works on niche, but may appeal to a particularly wealthy tranche of the population: STEM people. Other experiences and ideas that contribute to this realization are:
  • the creation of the OurBigBook Fellowship, which as of writing consisted of a single donation. During this exercise, Ciro Santilli gave about 2k USD to help a promising Brazilian student. In doing so, he understood a lot about what goes on inside a "rich person's" head when considering a donation
    • it is hard to decide who to donate to and find those people. In part because as soon as you create a public donation system with an application process, people will game the fuck out of it. Perhaps the Lost Horse LLC approach of "they find you" is the best?
    • it is basically impossible to donate more than 1% of your net worth if you have a family. Even 1% you may be discouraged about. Perhaps with reason due to previous bad donations they have made.
  • the increasing wealth inequality of this world, perhaps one of the greatest problems we now face
Then, whenever a larger donation would come through and surprise Ciro, he would improve his sponsor page statements. First a private 150 USD by an awesome sponsor. Then the 2023-09 ~810$ Bitcoin one. Finally came the 2023-11-20 100 Monero one. And it was that one that pushed Ciro to start his "100k USD = 1 year campaign".
Finally on 2024-03-13, Ciro received an anonymous 10 Monero donation to self-custody wallet. He had clearly stated that one should make a test donation to that wallet before the big one, so 10 Monero felt like it could be the test one. Ciro communicated the reception at: mastodon.social/@cirosantilli/112112988286298258 and twitter.com/cirosantilli/status/1769464788009066710:
I cashed out 10 XMR on @AgoraDesk for ~1,375 USD, and kept some change in the wallet for fun. This donation confirms that my self-hosted wallet and cash-out work just fine, so feel free to drop those millions whenever you want Mr. Anon :-)
Over the next few days, Ciro checked his wallet more often than his previously self imposed once a weekend max, and as expected, he found the big one on a slightly despaired around midnight sleepless night (partly due to parenthood). He was feeling particularly bored and a bit sad with his work life that night. And there it was. 1000 Monero on the wallet. Needless to say, not much sleep was done on that evening!!!
Video 1.
1000 Monero donation (~126,000 USD) reaction video by Ciro Santilli
. Source.
Figure 1.
Still of the reaction video after finding out about the big donation around about midnight
. Source.
Figure 2.
Screenshot of Ciro Santilli's Monero wallet with 1000 Monero in it just after the donation
.
The following days were also tense, with Ciro having a trial by fire on selling large amounts of Monero on the UK, which is not trivial as it had been banned from all major exchanges. But he managed. Further notes on that at: www.reddit.com/r/Monero/comments/17arz9f/converting_xmr_to_gbp_in_the_uk/. Ciro also decided to keep about 200 Monero around just for fun as a crazy moonshot.
Another major factor likely Ciro having published his article: Section "Cool data embedded in the Bitcoin blockchain" in 2019. This is something he wrote entirely for fun during an intense 3 week side-time binge in 2019, though some large updates were made later on. It was this article that likely some crypto-dude attention to Ciro Santilli's profile. As of 2024, there is said to be about 20 crypto billionaires, so perhaps there are about 2000 crypto 10 millionaires[ref], which is the minimum net worth for a donation of 100k USD to be feasible (1% mark). And perhaps a reasonable number of them are just nerds who got rich, and want to improve the world. There are two lessons from this:
  • follow your instincts, always. If something seems mega fun and quick, do it!
  • making money from a few rich people (or entities like organizations) is easier than working for a bunch of poor people, because you have to convince less people. If you reach many poor people however, things are much more stable as you can lose a few customers and still be fine
Another factor in the donation, Ciro Santilli believes, is that many rich people thing that education is bullshit. Many successful people are neurodiverse and as such, it is only natural that a large number of rich people want to improve our educational system, which tends to be the very epitome of "boring and average normality" which Ciro Santilli so much detests. This can also be seen in people such as:
Amazing reactions from the Monero Reddit community: www.reddit.com/r/Monero/comments/1brryao/ciro_santilli_received_a_1000_xmr_donation_to/
  • geonic_ comments:
    Reaction video is fake. Very bad acting.
  • Inaeipathy comments:
    Well, anyways, I would be very unsurprised if this 1000 XMR was sent to him by himself for... reasons.
  • -TrustyDwarf- comments:
    Anyone mind to explain wtf this ugly piece of webpage reminding me of geocities from the 90s is about? I'd read it myself but I can't because it already gave me eye cancer.
  • rbrunner7 comments:
    It's all quite strange. Never mind the 90s design, people built good websites already back then with the tools at hand, but even their "About" isn't very clear. If you need 5 minutes to be reasonably sure what it is all about they are still doing it wrong.
These people have some serious trust issues!!! Perhaps not surprising from a privacy coin community. Ciro's Twitter post: twitter.com/cirosantilli/status/1775961945193017790
Figure 3.
It's a role given to me by the Internet people
. Source.
Weak interaction Updated +Created
Explains beta decay. TODO why/how.
Maybe a good view of why this force was needed given beta decay experiments is: in beta decay, a neutron is getting split up into an electron and a proton. Therefore, those charges must be contained inside the neutron somehow to start with. But then what could possibly make a positive and a negative particle separate?
www.thestargarden.co.uk/Weak-nuclear-force.html gives a quick and dirty:
Beta decay could not be explained by the strong nuclear force, the force that's responsible for holding the atomic nucleus together, because this force doesn't affect electrons. It couldn't be explained by the electromagnetic force, because this does not affect neutrons, and the force of gravity is far too weak to be responsible. Since this new atomic force was not as strong as the strong nuclear force, it was dubbed the weak nuclear force.
Also interesting:
While the photon 'carries' charge, and therefore mediates the electromagnetic force, the Z and W bosons are said to carry a property known as 'weak isospin'. W bosons mediate the weak force when particles with charge are involved, and Z bosons mediate the weak force when neutral particles are involved.
Video 1. Source. Some decent visualizations of the field lines.
Largest ordinal inscription Updated +Created
We can get a list of the ordinals at: archive.org/details/bitcoin-ordinal-inscriptions.csv and then sort them by payload size with:
sort -k6 -n -t, ordinals.csv -o ordinals-sort-size.csv
This shows to us that as of block ~831k, there are 4 ordinals which are far far larger than any other between 3 MiB and 4 MiB, at about 10x larger than then 5th one d115a6e689086fd587e5032f24ba2a8c01f2f87cba758c9d5eb8cf7f6e9a816a
In those cases, a single inscription takes almost the entire block, and the inscribers must have had direct dealings with their mining pool:
As of 2024, all of the big ones were made in early 2023, so it seems that the trend has died down a bit.
Great doubt, great understanding Updated +Created
This is perhaps the most popular version of Great doubt in 21st century China
Fuller quote as seen e.g. at: www.hrfjw.com/fjrw/hcrw/ywfs/324750.html
大疑大悟,小疑小悟,不疑不悟
translation;
Great doubt, great underestanding. Small doubt, small understanding. No doubt, no understanding.k.sina.cn/article_5668613235_151e02c7300100wutq.html attributes it to modern day Chinese "Master Chongci" (崇慈法师).
Group of American universities Updated +Created

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