A friend of mine needs to hear it or see it. He gets bored reading anything longer than a few pages and can't stay motivated very long using my methods.
We clearly have different methods that work for us.
I don't just "THINK" it. I know it...and I have my own empirical evidence which has shown me which methods work for me (and which ones don't). I enjoy learning new things and have tried many, many different things and have helped other people learn as well.
I also ran a language study group for Japanese (and I had a language learning startup for a short-time) and I noticed the same thing with many people in the group (all the learners are adults over 25).
It may be anecdotal, but to me, there is no one-size fits all for learning. The trick is to find the most efficient way to learn and process new pieces of information and continue with those ways.