You can now write:in lieu of the old:
<Blue cats> are nice.
= Blue cat
= Big blue cat
{parent=Blue cat}\x[blue-cat]{c}{p} are nice.
= Blue cat
= Big blue cat
{parent=blue-cat} Ciro's Edict #5 Make 
Ciro Santilli 40 Updated 2025-07-16
\Include headers show on table of contents work for cirosantilli.com by Ciro Santilli 40 Updated 2025-07-16One of the key advances of the previous update was to show include headers on the table of contents.
This was to allow splitting source files freely.
While that goal was in principle achieved in that commit, when I went ahead to split the huge index of cirosantilli.com into multiple files, I notice several bugs that took a week to fix.
After all of these were solved, I finally managed to split the README at: github.com/cirosantilli/cirosantilli.github.io/commit/84c8a6e7fdbe252041accfb7a06d9b7462287131 and keep the previous desired output. You can now see that the README contains just:
\Include[ciro-santilli]
\Include[science]
\Include[mathematics]
\Include[technology]
\Include[art]This split led to a small positive modification of the output as follows. Previously, a section such as "Quantum Electrodynamics" would have been present in the monolithic README.ciro as:If you visited cirosantilli.com/quantum-electrodynamics, you would see see a link to the "nosplit" version, which would link you back to cirosantilli.com#quantum-electrodynamics, but that is not great, since this is was a humongous page with all of the README.ciro, and took long to display.
= Quantum electrodynamicsAfter the split,
= Quantum electrodynamics is present under science.ciro, and the nosplit version is the more manageable cirosantilli.com/science#quantum-electrodynamics.The key changes that were missing for that to happen were:
Advanced quantum field theory lecture by Tobias Osborne (2017) Lecture 2 by Ciro Santilli 40 Updated 2025-07-16
Ciro Santilli 40 Updated 2025-07-16Figure "xkcd 435: Fields arranged by purity" must again be cited.
Basically the opposite of reductionism.
Figure "xkcd 435: Fields arranged by purity" must again be cited.
"Discoveries" by Gregory Scott Aldering is a work that explores themes related to scientific discovery, innovation, and the human experience. Gregory Scott Aldering is a physicist known for his work in the field of astrophysics, particularly in relation to supernovae and dark energy. However, without specific context on the book, such as its publication year or content summary, it's difficult to provide a detailed description.
Pinned article: Introduction to the OurBigBook Project
Welcome to the OurBigBook Project! Our goal is to create the perfect publishing platform for STEM subjects, and get university-level students to write the best free STEM tutorials ever.
Everyone is welcome to create an account and play with the site: ourbigbook.com/go/register. We belive that students themselves can write amazing tutorials, but teachers are welcome too. You can write about anything you want, it doesn't have to be STEM or even educational. Silly test content is very welcome and you won't be penalized in any way. Just keep it legal!
Intro to OurBigBook
. Source. We have two killer features:
- topics: topics group articles by different users with the same title, e.g. here is the topic for the "Fundamental Theorem of Calculus" ourbigbook.com/go/topic/fundamental-theorem-of-calculusArticles of different users are sorted by upvote within each article page. This feature is a bit like:
- a Wikipedia where each user can have their own version of each article
- a Q&A website like Stack Overflow, where multiple people can give their views on a given topic, and the best ones are sorted by upvote. Except you don't need to wait for someone to ask first, and any topic goes, no matter how narrow or broad
This feature makes it possible for readers to find better explanations of any topic created by other writers. And it allows writers to create an explanation in a place that readers might actually find it.
Figure 1. Screenshot of the "Derivative" topic page. View it live at: ourbigbook.com/go/topic/derivativeVideo 2. OurBigBook Web topics demo. Source. - local editing: you can store all your personal knowledge base content locally in a plaintext markup format that can be edited locally and published either:This way you can be sure that even if OurBigBook.com were to go down one day (which we have no plans to do as it is quite cheap to host!), your content will still be perfectly readable as a static site.
- to OurBigBook.com to get awesome multi-user features like topics and likes
- as HTML files to a static website, which you can host yourself for free on many external providers like GitHub Pages, and remain in full control
Figure 3. Visual Studio Code extension installation.
Figure 4. Visual Studio Code extension tree navigation.
Figure 5. Web editor. You can also edit articles on the Web editor without installing anything locally.Video 3. Edit locally and publish demo. Source. This shows editing OurBigBook Markup and publishing it using the Visual Studio Code extension.Video 4. OurBigBook Visual Studio Code extension editing and navigation demo. Source. 
- Infinitely deep tables of contents:
All our software is open source and hosted at: github.com/ourbigbook/ourbigbook
Further documentation can be found at: docs.ourbigbook.com
Feel free to reach our to us for any help or suggestions: docs.ourbigbook.com/#contact