It simply means that the materials you're using for learning are just challenging enough to make you struggle, but easy enough so you can follow along with the gist of the conversation.

Comprehensible Input is often the biggest difference between those who plateau and those who progress quickly.

If your learning materials are too easy, your brain will go to sleep. If they're too hard, your brain will get overwhelmed. The fastest learning happens in the golden middle.

You have to find the materials that are just right, and you have to keep finding new ones as you'll quickly grow out of the old materials and need to find new ones.

That's where our Curated Immersion™ approach comes in.

Our curriculum so that each lesson meticulously applies our research. Each lesson naturally introduces just the right amount of new language, for maximum Comprehensible Input learning.

Plus, you don't have to waste time on learning phrases like "I am a mouse" or "the butterfly made me a cake." This means you get to focus on the most frequently spoken 80% of your target language -- and reach native-speaker understanding absurdly fast.