Ciro Santilli @cirosantilli 37

How it works: Section "How Bitcoin works".

Official website: bitcoin.org/en/

Reference implementation: Bitcoin Core.

Stronger version of the big O notation, basically means that ratio goes to zero. In big O notation, the ratio does not need to go to zero.

So in informal terms, big O notation means $\le$, and little-o notation means $<$.

E.g.:

Ciro Santilli's birthplace!

Ciro Santilli lived in Santos from about the year 1998 to 2007, with a 10 month hiatus in Coventry, UK, until he went to the University of São Paulo.

Santos is the nearest beach city to São Paulo City, and for this reason:

Ciro idolizes Santos as the perfect location to live nature-wise due to its amazing wide sandy beach, in which Ciro spent endless hours walking on the sand and on the largest beachfront garden in the world (archive), meditating, and playing some soccer after school was over. Santos is also the city where Pelé first played professionally.

Ciro has visited Santos several times after leaving Brazil. Doing this gives him a weird feeling of having a separate life, in which time passes 2 weeks every few years. Of course, as your family grows, it gets harder and harder to go back home, and your family members might want to just go travel to more interesting places than just stay at your wonderful beach which you love in part due to nostalgia.

Ciro is also fond of the concept of the small public buildings near the beach garden (postos de praia), which serve different cultural activities: library, comic book store, art cinema, surf school. It is such a shame that the library and comic book ones are in such bad shape as of 2020, old books and poor people who go there to sleep a bit in the barely working air conditioning. Ciro fantasizes how those could instead be cultural hubs for the gathering of the brightest artists, and scientists, of town. Maybe they are just too small. Maybe it is not within the realm of possibility of public service. Maybe, we should focus instead in the poorer regions, far form the beach. But the dream remains.

Santos only has one natural defect: mosquitoes. By the sea it is fine because the wind is strong, and they don't like salt water. But anywhere else, you will be eaten alive, and maybe get dengue, Ciro got it once. Gene drive, please.

This instagram page has several drone videos of the region: www.instagram.com/malta.drone

TODO interactive online app? Ahh, those charities that try to make money by individual transactions... when they die, nothing will be left of all their work.

Edit: noticed that it is on by default on OpenStreetMaps web UI under the "Cycle Map" layer marked at "NB".

End: Permian-Triassic extinction event.

Is the only atom that has a closed form solution, which allows for very good predictions, and gives awesome intuition about the orbitals in general.

It is arguably the most important solution of the Schrodinger equation.

In particular, it predicts:

The explicit solution can be written in terms of spherical harmonics.

Source code: github.com/sequelize/sequelize

Some usage examples under: Section "Sequelize example".

As of 2021, this library is extremely painful to use. It does feel semi-mature, but there are just too much horrible things going on;

Some glaring issues are listed at the horrors of Sequelize.

The size of a set.

For finite sizes, the definition is simple, and the intuitive name "size" matches well.

But for infinity, things are messier, e.g. the size of the real numbers is strictly larger than the size of the integers as shown by Cantor's diagonal argument, which is kind of what justifies a fancier word "cardinality" to distinguish it from the more normal word "size".

The key idea is to compare set sizes with bijections.

Our definition: first generation to be born in country parent immigrated to.

Uses Redux, while reactjs/react-rails appears to do that more manually

Lots of focus on Heroku deployability, which is fantastic: shakacode.gitbooks.io/react-on-rails/content/docs/additional-reading/heroku-deployment.html

Live instance: www.reactrails.com/ with source at: github.com/shakacode/react-webpack-rails-tutorial Not the most advanced web-app (a gothinkster/realworld-level would be ideal). Also has clear dependency description, which is nice.

Trying at github.com/shakacode/react-webpack-rails-tutorial/tree/8e656f97d7a311bbe999ceceb9463b8479fef9e2 on Ubuntu 20.10. Got some failures: github.com/shakacode/react-webpack-rails-tutorial/issues/488 Finally got a version of it working at: github.com/shakacode/react-webpack-rails-tutorial/issues/488#issuecomment-812506821

Oh, and the guy behind that project lives in Hawaii (Ciro Santilli's ideal city to live in), has an Asian-mixed son, and two Kinesis Advantage 2 keyboards as seen at twitter.com/railsonmaui/status/1377515748910755851, Ciro Santilli was jealous of him.