It's not that weird or different. The idea is pretty simple-- surround yourself with grammatically correct Japanese, and don't force yourself to try to produce your own original sentences until your brain has processed enough good Japanese to know how to do it without forcing it. It takes longer at first, but over time it's actually more efficient, because you're not wasting time cramming useless grammar rules into your head, or learning things that are useless. You're studying what interests you, and you're letting your brain pick up the rules on its own, the way most of us learned our first language anyway.
It's basically modified immersion, designed to trick your brain into learning things long-term rather than short-term. If you've taken classes in school, you'll know what I mean. In school, you mostly do lots of short-term memorization that all goes out the window unless you review it and use it. This method is designed to avoid that sort of memory trap, and emphasizes long-term memory building over time.
Check out alljapaneseallthetime.com, and read from the "Newcomers start here" link. If you want to see another way it's been approached with respect to learning English, check out antimoon.com.
It's up to you, but I wouldn't just dismiss something just because it's different.
It's basically modified immersion, designed to trick your brain into learning things long-term rather than short-term. If you've taken classes in school, you'll know what I mean. In school, you mostly do lots of short-term memorization that all goes out the window unless you review it and use it. This method is designed to avoid that sort of memory trap, and emphasizes long-term memory building over time.
Check out alljapaneseallthetime.com, and read from the "Newcomers start here" link. If you want to see another way it's been approached with respect to learning English, check out antimoon.com.
It's up to you, but I wouldn't just dismiss something just because it's different.

.