>Most of my learning now is via audio books while I'm doing something else.
You're not actually learning anything then. Memorizing trivia, sure. But not actually learning.
With me (I have ADHD), I would never be able to listen to an audiobook alone, I would zone out and day dream one paragraph in. But If I'm playing a game on my phone, I can listen and pay attention for hours.
That seems like a pretty controversial take. Why would you not be able to learn things orally?