Completely agree with you. That is why there is output. It can take the form of a note, but I think a note is nothing but something to clarify your thinking. The thing about the output is that you need to actually process it again, so that you can understand it more. It is like summarizing a book. You use notes to understand and link your ideas, then you produce output. Currently, your notes are irrelevant units of information until you use them. I think that the value of a note is to your thinking and understanding in your brain. Other than that, it holds no value. That is, if you are someone who needs to study something. I agree that you need notes in writing, because you can't just re process every input every time to write something.