I think we should try, and I include myself among those who have an approach to learning that is at times too cerebral, to look at how things work more than how interesting would be if they worked in a particular way.
>> As one more flashcard, another pillar, additional context, they will to deepen your understanding. It is creating more inter-connections between your neurons.
This is a hypothesis, identifying a mechanism that leads to an effect. But I don't see any tested hypothesis for either the mechanism or the effect. And we have millions of people who have mastered other languages as children and as adults who have no idea what etymology means.
I mean, it sounds reasonable, in theory. Like knowing the evolution of tactical formations in soccer would like one to become a better player. But it is common sense it has no effect whatsoever on soccer abilities.
preview: https://www.google.com/books/edition/Learning_Spanish_Words_...
It's just a bunch of vocabulary paired with etymology notes and observations/sounds-likes to make the vocabulary memorable.
EDIT, hm he seems to be missing some obvious cognates, e.g.
>propio, own (adj.); proper (cognate). Proper in modern English no longer has the meaning "own", but this word in Spanish, propio, still retains it. if this knowledge is too uninteresting, use a mnemonic such as "A truly proper lady behaves in her own natural style."
wtf? What about just the English word "property" instead of this silly lady business?
I'd often come up with little stories to teach myself some of the more complex Chinese characters when I was learning quite intensively and found I never struggled to remember those words after doing so.
I think there's a difference. "Almuerzo" -> "al muerzo", I know "al" means "the", from Arabic, I look up the etymology, the "muerzo" is from Latin "morsus", from which we get "morsel" in English. Mnemonic: "the morsel". Then I can guess that the form of the verb is almorzar, which is indeed the case. Even learning a simple word embeds and thickens a web of associations in one's mind. SRS strengthens this, makes it scale better.