Ciro Santilli @cirosantilli 37

It is quite mind blowing when you think about it, that the huge majority of your body's cells is essentially just there to support a tiny ammount of germline, which are the only cells that can actually pass on! It is fun to imagine the cell type tree for this, with a huge branching of somatic cells, and only a few germline going forward.

There are six, three in each sense, depending on where you start modulo-3.

Subset of Galilean transformation with speed equals 0.

The "most prestigious French engineering school". Only 3 Nobels though as of 2019, the scientists are mostly at École normale supérieure (Paris). A gazillion CEOs ad politicians however.

Ciro Santilli studied there from 2010 to 2013.

Ciro considers him entering at Polytechnique a small miracle. First, on his second year of University in Brazil, he first had to fail to join the also good but not as good École centrales, which really annoyed him as he saw the "other good students" who wanted to go out get their wish. This also explains why there are so few students from his university going to Polytechnique in the late 2010's: most already went to other locations! Then, on his third year, he tried Polytechnique and got in despite feeling that the others who got in knew much more mathematics and physics than him. Rather, Ciro believes that he got in chiefly due to his intense passion for the sciences which he showed during the interview.

The miracle would have been even greater if it had happened in 2020. At this time, out of 10 Brazilians, 9 are from ITA, the "hardest to get into" university in Brazil, and also military like Polytechnique. Make no mistake, those students are amazing and deserve it without any doubt. But there is more to the story. It could be argued that many of them only go because they don't have any other choice of exchange program. Remember: Ciro had to fail applications on previous universities before getting into Polytech. Also, they don't get any Brazilian degree because ITA has no agreements with Polytechnique, and are therefore extremely likely to never come back. Not that Ciro thinks this is particularly bad for Brazil though, but it does make for a better deal for France overall as well. They also happen to have closer ties across cohorts of different years, and have managed to maintain a Google Doc with scanned past examinations (as of 2020 however, some/all of those examinations have been uploaded publicly, big kudos to them). Also almost all of them are software engineers, which is one of the few disciplines given at the relatively small ITA. This lack of diversity might not be ideal: if I were France, I would rather fish around all top Brazilian schools for "the best".

Besides the amazing funding/opportunities/alumni/staff loop which you can read about elsewhere, Polytechnique is amazing because you can choose what you will study every year to a very large extent.

This is in huge contrast to the crappy systems Ciro had seen e.g. in Brazil's Polytechnic School of the University of São Paulo, where students have to decide basically all their courses in huge packages, either at university entry (thus when they are completely clueless), or at a single point inside the university studies, changes being much harder.

Life quality was also amazing. Good free accommodation on campus and at the time a no-obligations scholarship for every foreign student great sport facilities. It seems that after Ciro left however more restrictions are added to the scholarships, what a shame! As of 2020 not everyone gets scholarships anymore it seems, mostly only loans that have to be paid back later. And those who are not poor have to pay Polytechnique scholarship fees on top of their living costs. And thus French austerity measures are undermining the greatest long term investment a country can possibly make: that of importing the very best students from other countries into yours. This after their host country has already spent 20 years raising and selecting them. And you won't even pay them 2 years of frugal existence to steal some of them them. Even if those students move away from your country later on, the contacts they made in your country mean they are much more likely to bring businesses over. But some will stay. Basically, France is becoming more like the United States.

This also makes it much more difficult for those students to do a PhD afterwards, where they would get paid very little, and are unable to pay their student debts. A PhD would be where they would possibly bring more of the next big thing to your country. Instead, they are much more likely to just go work for some big American company data wrangling and bring nothing to your country but their student debt dividends instead, which they will be pay to pay for in one year with those amazing salaries. And unsurprisingly many go to into banks. What a big time fail, France.

Sport was mandatory due to the military nature of the school. This did have the upside of getting students together more, although Ciro is against all forms of forced intellectual of physical activities for students. If you liked your sport it would be really cool though. But due to Section "Ciro Santilli's knee", he was forced to give up his first beloved choice which was soccer... life can be cruel. If only Ciro had known cycling at at the time, and if only that had been one of the sports you could choose (but of course it isn't, no school will want the bad reputation of when one of their students gets killed in a car accident).

There were also some useless "military exercises", or special situations in which you had to wear the useless school uniform as a formal "respect social clothing". Ciro Santilli is completely against all that meaningless bullshit, this his just a form of theatrical masturbation to nostalgically remember the good old days of Napoleon when France still ruled the world, and before they tortured the Algerians, see also: Video 4. "Gérard Fuchs interview from Ils racontent la Guerre d'Algérie (1982)". If you are going to do military-like stuff, then at least teach students how to shoot modern rifles and modern warfare tactics (which some of the French students actually do in the pre-school mandatory internship), and not this 18th century bullshit. Ciro favours of course the hoodie-wearing, "I only care about your abilities meritocracy" culture of Silicon Valley. And without the political correctness now associated with it in the 2020s. And no shooting people if possible.

During the time Ciro was at Polytechnique in early 2010's, the school was really isolated in the Plateau de Saclay, there were no shops in 10 minute walking distance! You either had to climb 300 steps to go down to the nearest village, Lozère, or take a bus to the nearest town, Massy. The fact that Times Higher Education ranked it as the second best university in the world in 2019 (archive) makes it good justice, given the small 500 student body. Things started to change a bit after Ciro left however, with the creation of the Polytechnic Institute of Paris, which is bringing other schools to the Lozere area. This is for the best, as it might improve the global rankings of Polytechnique. Also it is a waste to have so few students at a technopole. But it will reduce the mystique of the place. You can't have everything in life.

Before 1976, Polytechnique was actually in the center of Paris at the Latin Quarter, so the Lozère mystique is not a traditional thing. But even when in Paris, students were in theory restricted to school grounds a most of the time. Although there are famous stories of a certain tree that could be used to climb the fence to go to Parisian parties when they couldn't stand it anymore. The tree was somewhat intentionally overlooked by school administrators. Polytechnique was drawn to Saclay no doubt because of the gravity of the CEA Paris-Saclay, France's analog to the United States Department of Energy national laboratories.

This made for some good memories though. The isolation favored concentration, and gave the place a mystical feeling. And then when you went to eat amazing Chinese food in Paris it just felt even more special and magic since you were so limited during the week. It was also under those magical circumstances in which Ciro met his wife, another student of the school, see also: Section "The main function of university is sexual selection".

Ciro also agonized about passing courses to get useless grades though! Polytechnique is hard for most Brazilians, specially if you select the more mathematics oriented courses, because the French students were math brainwashed for two years before joining.

Ciro's favorite spots/activities:

The following promotional videos give an idea of how the school looks like, although they fundamentally miss the little corners that Ciro really loved in that the place and which made it magic:

And a one second Ciro Santilli appearance from a 2016 video made during the annual Brazilian barbecue (or as close as you an get to it) which many ex-Brazilian students attend able: www.youtube.com/watch?v=ndX_-A2Rjpo&t=189 wearing a Ring t-shirt.

2-dimensional heat equation example with Dirichlet boundary condition:

There are explicit examples of this. We can have ever thinner disturbances to convergence that keep getting less and less area, but never cease to move around.

If it does converge pointwise to something, then it must match of course.

This is a tag for films that depict some sort of artificial general intelligence, but in which that is not the primary focus of the film.

edisciplinas.usp.br/pluginfile.php/48089/course/section/16461/qsp_chapter7-boltzman.pdf mentions

Formal name: "fungi".

Vitamins are essential nutrients that are small organic compounds.

Mentioned at 100 Greatest Discoveries by the Discovery Channel (2004-2005) medicine episode.

A suggested at Physics from Symmetry by Jakob Schwichtenberg (2015) chapter 3.9 "Elementary particles", it appears that in the Standard Model, the behaviour of each particle can be uniquely defined by the following five numbers:

E.g. for the electron we have:

Once you specify these properties, you could in theory just pluck them into the Standard Model Lagrangian and you could simulate what happens.

Setting new random values for those properties would also allow us to create new particles. It appears unknown why we only see the particles that we do, and why they have the values of properties they have.

Follows the "certified teacher only" approach which is in Ciro Santilli's opinion a fatal flaw of most elearning systems out there, OurBigBook.com won't suffer from that!

But that is a very, very good project.

All notes appear to have been extracted from existing notes, as noted on the bottom of each page.

Appears to have mixed licenses. E.g.:

TODO how does it work exactly? Do they ask for permission from authors in every case, including when the content has open license? Or when it has open license, do they just do it? In some cases, the notes have no license, so they must have asked.

TODO what is the source code that authors write? LaTeX or something else? LaTeX feels extremely likely given that it is what most original materials were already written in.

They are attempting a "model up this entire university" thing: phys.libretexts.org/Courses which is good. E.g. they have a bunch of "quantum mechanics ones under: phys.libretexts.org/Bookshelves/Quantum_Mechanics

Appears to be UC Davies-based mostly.

They claim to use this closed source backend: www.nice.com/resources/cxone-expert-knowledge-management? Seriously? For a publicly funded project with low-tech requirements?? It is mind blowing.

Some issues:

OK let's database it: