Learning is never about "the more you hear, the more you understand."

The pyramid model is quite straightforward: listening, reading, watching videos, all of these are passive absorption, and the efficiency is ridiculously low.
What truly enhances one's abilities is hands-on practice, thinking, and expression.

You will find a pattern.
Knowledge that only stays in the mind is not solid.
Once you start discussing, start practicing, and start explaining it to others.
The depth of understanding doubles instantly.
Because you are forced to turn vague things into clear logic.

Why is Feynman's ultimate learning method effective?
Because it has pushed learning from "understanding" to "explaining clearly."
Only if you can explain it clearly can it be considered that you really understand it.
If you can't explain it clearly, it means you haven't understood it yourself.

So don't blindly trust passive input.
Real growth happens the moment you take the initiative to output.
Knowledge is dismantled, chewed, and reorganized by you.
You will discover: it turns out you can learn and understand more than you imagined.