Thanks for that. Makes sense, though not something I would have thought of. I listen to Futility Closet, The British History Podcast, Stuff You Should Know and many others while my eyes are otherwise occupied - layout editing, walking in traffic, washing dishes, etc., and sometimes do find that I need to back up and re-listen to a section, but when I have time to read, my face is stuck in a book (or on BoingBoing…)
I listened to this particular episode on my way home from work last night and at one point had tears streaming down my face as I approached the train station.