> the author posts often.
Oh hey, that's me :)
I'm a big believer in the idea of mastering fundamentals, and even explicitly mention in the mithril.js framework comparison page[0] that you can build production quality stuff with any framework (including of course mithril.js)
There's this pervasive notion with newer tech that new things must be objectively superior than old stuff, but the way I see is that everything comes with trade-offs, e.g. Rust may indeed be safer than C, but conversely it's also been characterized as difficult to learn/keep up with, and IIRC has a less broad range of target architectures.
I think, however, that reading resources like the "The descent to C"[1] article that's up on front page can help someone getting into C, but also Rust, and even someone who wants to gain some insight about how Javascript works under the hood, precisely because it's a resource more about fundamentals than C per se.
Similarly, there are fundamental patterns that appear over and over in competing technologies (e.g. routing in JS frameworks, or DI in object oriented systems), and this goes for even the design of said patterns (e.g. principles of encapsulation, composition and orthogonality)
I've even had success applying the search of fundamentals to other disciplines. Bruce Lee famously said "fear not the man who has practiced 10,000 kicks once, but I fear the man who has practiced one kick 10,000 times". But one hidden insight is that in martial arts "it's all about the hips": once you "get" the insight about the role of hip rotation, all striking techniques improve by leaps and bounds. Many such "fundamental" insights exist, from insights about balance to insights about tells.
In music playing, one universal insight is that effortlessness is quite literally a matter of muscle relaxation (beginners often get stuck in a rut because they tense up unconsciously). Etc.
It's fun looking for fundamental insights.
[0] https://mithril.js.org/framework-comparison.html
[1] https://www.chiark.greenend.org.uk/~sgtatham/cdescent/