I watched anime for ten years and learned five words. Konnichiwa. Arigatou. Nani — and honestly, nani only because of the meme. A decade of input, basically zero Japanese, which is a genuinely embarrassing way to start the story of a language app. But it's the true one, and it's the part that explains everything else, so I'm not going to skip it.
Eventually I was planning a trip to Japan, and I didn't want to nod politely at people — I wanted to make actual friends. So I did what everyone does. I downloaded the owl. I gave it a real, honest month: every day, streak going, the owl visibly proud of me. At the end of it I could not order a coffee. I knew colors. I knew the bear drinks beer. I could not do anything. And the thing I figured out too late is that it isn't broken — it's working exactly as designed. It doesn't need you to finish; it needs you to come back tomorrow.
"A streak is not a skill. It's a leash."— from the video I am making about it
So I quit, and being a software engineer with an unhealthy relationship with optimization, I asked a different question — not what's fun, but the actual fastest way a human brain can absorb a language. That turned into a twenty-hour run at Japanese I tracked to the minute, and it's the experiment the whole app is built on. I want to be precise, because language-learning YouTube is full of liars and I refuse to add to the pile: twenty hours got me to roughly a thousand words, most of basic grammar, enough to follow an anime and hold a slow, mistake-ridden, real conversation. It did not get me reading novels or writing kanji. That's the boundary. Not fluent — functional.
The rabbit hole, and the deck
Getting there meant a research hole people have been fighting in online for about twenty years. The immersion purists ("just watch ten thousand hours, bro") are genuinely right — over years, and I had a trip booked. The textbook people I respect, but I'm too lazy for grammar drills. Lazy in a specific way, though:
"I'll spend ten hours finding the path that saves a hundred."— from the video I am making about it
What I found in the nerdiest corner of the internet was spaced repetition — flashcards scheduled by an algorithm that predicts the moment you're about to forget, so almost every minute is spent at maximum efficiency. The tool for it, Anki, is free, open-source, and looks like it was designed in 2003 because it was. And here's the honest part: I almost quit the method that works because the setup was a part-time job — hundreds of community decks, conflicting settings, an algorithm I was apparently supposed to tune myself. I lasted four days on my first attempt.
Then I found the deck — the one anime deck with everything done right: one new thing per card, real audio from real shows, grammar woven in for free, ordered by how often words actually get used. I was so happy I donated five dollars to the guy who made it. That deck plus one episode of anime a day is the whole twenty hours. (If you want the mechanism — why your brain forgets on a curve, why one new word per card is the trick — I wrote it up in the underlying method, because the why is the part that convinced me.)
The door that opened
The grind was real. Day one is miserable — you fail a word, see it again four minutes later, fail it again, feel stupid. The reframe that saved me: reaching for a memory and missing isn't failure, it's the rep. And the method has one true enemy, and it isn't difficulty — it's the pile. Miss three days and the reviews stack to three hundred and you "wait for the right time," which is procrastinator for never. That's where I fell off, honestly. What got me back was lowering the bar to the floor: do ten minutes, leave.
And then, about two weeks in, the thing happened. I'm watching an episode, not even trying, and a character says a full line — and I just understood it, before the subtitle appeared. The whole sentence, instantly, no translating in my head. I paused and walked a lap around my room. Ten years of watching anime, and the language had been a locked door the entire time, and it just opened. From that moment it stops being studying; every episode is a boss fight you're slowly winning. The flashcards, it turns out, were never the whole method — they were the bootstrap that force-feeds you to the threshold where anime stops being noise and becomes a free, unlimited tutor you were going to watch anyway.
The stupid thing I did about it
Here's the part I didn't plan. I started telling people. Friends, family, coworkers — everyone had the same reaction: okay, that's actually insane, how do I do it? So I'd send them the whole setup: the app, the deck link, the settings, the little guide I wrote. Twelve people asked.
"Zero. Not one. Not my best friend. Not my mom."— from the video I am making about it
That's how many made it through setup. The single most effective method I'd ever seen — proven, free — and the setup screen killed one hundred percent of normal people before card one. The method is solved. The access is broken. That bothered me for months, so, being lazy in a good way, I did the least lazy thing I've ever done: I spent the better part of a year building the version with no setup.
That's Flua. One expertly ordered deck per language — the right thousand words first, one new thing per card, real natural audio on everything. The scheduling algorithm comes pre-tuned and invisible; it even tells you how to grade yourself, so there's nothing to configure. You download it and you're learning inside sixty seconds. Everything I just spent this page explaining is in there, working silently.
The honest status, because I'd rather tell you than oversell: it's built. The app runs, the decks are live, the payments work end to end in code — I've watched it. What stands between it and the world isn't the software. It's me, doing paperwork. The thing is finished and the founder is the bottleneck, which is on-brand and a little humbling to admit. But the part that mattered — making the method something a normal person can actually reach — that part is done. You can feel it working in your browser without taking my word for any of it. And if you've got the patience for the free hard way, it genuinely works; it's how I did it. Go win.
Keep going Japanese in ~20 hours · How I learn anything in 30 days