Personally, even if I lose something listening to an audiobook while driving, I gain more than if I did something else. It's otherwise lost time. I can always re-listen and gain something I missed the first time.
That's one perspective. On the other hand, I find many missing pieces what I'm looking for while driving in silence. When I reach my destination, either have answers or new questions to jot down.
I think silence / noise is another form of breathing. After filling your brains' queues, you need to allow it to process these queues in its own terms. When queues are processed, there is loot to collect at the other end of the bar.
