I mostly listen to podcasts as a way to pass the time while doing chores, but really I forget 99% of what I'm hearing. Occasionally I will come across something interesting enough that it provokes me to read a book or study further, but the podcasts themselves (even the highest quality ones like Econtalk) are rarely inscribing long term information into my brain.

An observation when running in London: female runners almost always have expensive kit and a water pack, but male runners often look like they've just found some swimming trunks and a pair of old shoes. Not quite sure what to make of it.