Open source development model in which developers develop in private, and only release code to the public during releases.
Notable example project: Android Open Source Project.
This development model basically makes reporting bugs and sending patches a waste of time, because many of them will already have been solved, which is why this development model is evil.
Programming is hard. To Ciro Santilli, it's almost masochistic.
What makes Ciro especially mad when programming is not the hard things.
It is the things that should be easy, but aren't, and which take up a lot of your programming time.
Especially when you are already a few levels of "simple problems" down from your original goal, and another one of them shows up.
This is basically the cause of Hofstadter's law.
But of course, it is because it is hard that it feels amazing when you achieve your goal.
Putting a complex and useful program together is like composing a symphony, or reaching the summit of a hard rock climbing proble.
Well known popular science character. He just looks futuristic and wraps stuff in exciting empty words. When he shows up, you won't be learning much.
Ciro Santilli considered this as the basis for Ciro's 2D reinforcement learning games, but ultimately decided it was a bit too messy. Nice overall though.
One of Ciro Santilli's strongest feeling in education is that material often falls in either of the two categories:
- hundreds of too basic popular science, e.g.:
- a 5 minute popular science video trying to explain quantum electrodynamics (an advanced subject) for someone who doesn't know what a Riemann integral is (a basic subject)
- a few full university courses that takes 20 hours to deliver the first punchline of the course
Ciro believes that there is often an important missing link between them, e.g.:
- a 15 minute video that delivers the main end results and motivations for people who already know the very basic stuff
If we as a society are unable to provide this sweet Middle Way sweet-spot, it is unreasonable to expect that learners will ever have the motivation to advance, because it is just too boring! They are just more likely to go play video games instead.
It is Ciro's hope that OurBigBook.com will help to fill exactly that gap.
In Ciro's view, as of the 2020's this critical gap generally lies somewhere between the end of undergraduate studies, and at the start of postgraduate studies.
What we have to do is make this knowledge more accessible all way down to high school and earlier.
Let's take the gloves off more often, and give the full thing to interested students! Let students learn what they want to learn, and do that as soon as possible! Life is too short!
This problem is basically the knowledge version of the last mile problem. When we reach the end of graduate, there are enough directions of knowledge to go off into, that the probability that a great free tutorial exists is relatively low. Of course, as one approaches the realm of novel research, the branching is so wide that having perfect tutorials becomes impossible. Ciro's goal in life go push the last mile marker a bit further out.
Related:
- universityphysicstutorials.com/ by Adam Beatty mentions:
There are myriad resources for physics and maths. The Kahn Academy and Patrick JMT were the best for me. They really helped me out. The question is, what resources are there for the advanced undergraduate courses?
Bibliography:
Some blogs:
- blog.codinghorror.com/the-best-code-is-no-code-at-all/ The Best Code is No Code At All (2007)
- www.skrenta.com/2007/05/code_is_our_enemy.html Code is our enemy (2007)
Also resonates with backward design.
github.com/cirosantilli/node-express-sequelize-nextjs-realworld-example-app contains the same baseline tech as OurBigBook, and I have been use to quickly test/benchmark new concepts for the website base.
I'm almost proud about that project, as a reasonable template for a Next.js project. It is not perfect, notably see issues on the issue tracker, but it it quite reasonable.
The side effects of ambitious goals are often the most valuable thing achieved once again? I to actually make the project be more important thatn the side effects this time, but we'll see.
Since the last update, I've made some major improvements to the baseline tech of the website, which I'll move little by little into OurBigBook. Some of the improvements actually started in OurBigBook.com. The improvements were:
- got a satisfactorily comprehensive linting working at: this commit. Nothing is easy, not even that! Part of the wisdom extracted to: stackoverflow.com/questions/58233482/next-js-setting-up-eslint-for-nextjs/70519682#70519682.
- fully rationalized directory structure to avoid nasty errors that show up in Next.js when accidentally requiring backend stuff on the client. Commit. A detailed explanation of this was extracted to: stackoverflow.com/questions/64926174/module-not-found-cant-resolve-fs-in-next-js-application/70363153#70363153.
- create an extremely clean and rationalized way to do API tests from a simple
npm test
. These now actually start a clean server, and make full HTTP requests to that server. Commit. Wisdom extracted to: stackoverflow.com/questions/63762896/whats-the-best-way-to-test-express-js-api/70479940#70479940. - greatly reduce the number of SQL queries, fully understood every problem
- more intelligently using JOINs where I have managed to get Sequelize to do what I fucking want. This also led to several sequelize Stack Overflow answers as usual: stackoverflow.com/search?tab=newest&q=user%3a895245%20%5bsequelize%5dEverything that I didn't manage to do because of crappy sequelize is documented at: github.com/cirosantilli/node-express-sequelize-nextjs-realworld-example-app/issues/5
- better understanding Next.js/React/useSWR do avoid doing double API queries
Large but ephemeral storage for EC2 instances. Predetermined by the EC2 instance type. Stays in the local server disk. Not automatically mounted.
- docs.aws.amazon.com/AWSEC2/latest/UserGuide/InstanceStorage.html (archive) notably highlights what it persists, which is basically nothing
- serverfault.com/questions/433703/how-to-use-instance-store-volumes-storage-in-amazon-ec2 mentions that you have to mount it
Looking at the energy level of the Schrödinger equation solution for the hydrogen atom, you would guess that for multi-electron atoms that only the principal quantum number would matter, azimuthal quantum number getting filled randomly.
However, orbitals energies for large atoms don't increase in energy like those of hydrogen due to electron-electron interactions.
In particular, the following would not be naively expected:
- 2s fills up before 2p. From the hydrogen solution, you might guess that they would randomly go into either one as they'd have the same energy
- in potassium fills up before 3d, even though it has a higher principal quantum number!
This rule is only an approximation, there exist exceptions to the Madelung energy ordering rule.
There are unlisted articles, also show them or only show them.