TLDR: This is highly motivating because it confirms a bunch of what I’ve cobbled together myself.
This guys method is similar to my method:
anki plus tons of audio and youtube.
He augmented it with talking to tons of people afterwards (which is different than my method).
It’s interesting, though, that he took an intense focus on something that I know about and used a little bit but didn’t focus on entirely, which is the IPA system.
My hypothesis comparing my own results to his (I’m at just under a year in Russian) is that my Russian was slowed down because I did NOT focus enough on IPA. The phonology of Russian is sufficiently different than English that it killed my comprehension of the individual vowels and consonants. It took me nearly 7-8 months before the sounds started to feel natural to me.
I haven’t yet talked much (only 5 times) to native speakers so I can’t compare there.
The best comparison I have is what I did with Spanish: almost identical but at about a year I immersed myself in Latin culture and talked for at least 5 hours a week. I speak pretty good Spanish with a reasonable Mexican accent.
So I have no doubt at all that this guy’s method works.
Specific commentary on his method follows:
EDIT: one thing he does that is interesting is that he “speaks to himself”. I definitely don’t do that so maybe that’s why my speaking is nowhere as good as my listening but I can say that the Universe of memory guy says that speaking words out loud helps massively. The Glossika guy’s entire method is just based on repetition of phrases out loud. And there’s also stuff like Pimsleur and Dave Thomas so maybe there’s something to it.
EDIT 2: There is one thing the guy has right but his reasoning is wrong. He is right that you need to keep a habit up (i.e. do some every day - in my case 1-2 hours). He’s wrong about it merely being to do with lack of motivation.
IMHO the lack of motivation is caused by lack of belief in success due to a very long feedback situation as well as a high threshold before you feel like you can understand anything. The difficult part is to know that it works and keep on going. In my case I had no problem “knowing” that my method would work for French because I had done something similar with Spanish (albeit I didn’t have audio for Spanish in the anki equivalent I used back in the day). The second thing I did was give myself a time limit so that my target was do it HARD for “just” six months and then quit. So both of those things over-rode my lack of belief, which again IMHO is the total killer of motivation. With Russian, however, the lack of belief crept in because I had never had success at a “hard” language. I had to come up with a proxy belief by the fact that Ikenna and Steve Kaufman’s methods both overlap with my own. At times I felt like giving up because the progress on Russian felt painfully slow. But at six months I had definitely made acceptable progress. And right now at 11 months I can’t quite say I can “speak” Russian (although I absolutely can) because my grammar is horrible. But I can definitely have a conversation and I can understand several youtubers in Russian perfectly. Although I haven’t quite achieved my target of being able to perfectly understand TV shows in netflix yet.
EDIT 3: I’m delighted to hear he shares my belief in “don’t study grammar” as I suspect this means that the Mandarin Grammar is not very complicated to master.
In Russian, however, the grammar is pretty complicated because it has cases, declensions and conjugations. So I agree AND disagree with him. What I would say is this: don’t worry about grammar in the beginning in any language. If, however, your language is grammar heavy (e.g. Russian) you are definitely going to have to dig into it at some point but I would leave it until at least six months in. If it’s not grammar heavy then yeah, ignoring grammar you’ll pick up what grammar it does have just by listening/reading/being exposed to it.