Why would you expect the article where I’m describing what worked for me to “discover something new”? I’m literally sharing the mental model that I personally found helpful. There’s nothing “new” in learning or teaching a language. But this is the most minimal model I’ve found useful, compared to others, and I wanted to share it with other people.
I think you’re taking a lot of stuff for granted. “Just” do cards etc. You’re using the word “stem” but what’s a stem? Why do we sometimes inject -i or -a (or -wa) there and sometimes we don’t? You still have to learn that and understand that. That’s what I’m describing in the article. If you already know stems and how they compose with suffixes, congratulations, you won’t find my article useful.
Honestly, you don't need to "learn" or "understand" much grammar explicitly. I think it definitely helps get you off your feet, as you can "decode" sentences if you remember grammar rules, but eventually the grammar has to be internalized anyway. This happens when you are repeatedly exposed to the same patterns in context. I don't know how English or Norwegian grammar works, and I'm fluent in those. I skipped grammar in Japanese and focused on reading, yet I can understand most things and I can tell when something sounds wrong.
Clearly you and I learn differently. If I need to apply suffixes correctly, I want to understand how to do it predictably without learning every single form for every single word. Even if patterns coalesce in my mind into an intuition later, I appreciate seeing the shape of these patterns. Especially when they’re so elegant. Why is sharing that a problem?
I didn't criticize either your article or your comment :). I enjoyed reading the article and finally learning why it's called godan and ichidan, and it was fun to learn that kau was originally kawu.
Any mention of Japanese learning always brings out negativity and criticism (and the effect is probably doubled by being on HackerNews) so I understand that you're on defense.
My comment was really just an objection to "You still have to learn that and understand that", as I don't think studying grammar is a mandatory step in learning a language (I'm a subscriber to the Input Hypothesis by Stephen Krashen). Though it could very well be that grammar study is an effective shortcut to internalizing grammar. At the end of the day, the amount of hours spent learning from context matters way more than the specific steps taken along the way.
Ah, I see what you mean. For me personally, knowing the shape of the system underneath has a sort of calming effect because I have a sense of the upper bound of how annoying it will be to learn by osmosis. And it's also nice to have a fallback for when I have a cache miss and need to really think through saying something.