In the past year or two, I’ve begun listening to a lot of podcasts. I don’t know if it’s sustainable, but currently for my job I often have to do lots of tedious work that would otherwise be mind numbing (like sample fabrication, experiment setup, etc), but is perfect for listening to podcasts. I also go to the gym regularly, and walk or bike around everywhere, all more time to listen to them. In addition, I usually increase their speed: usually about 1.5x if it’s something I need to think about a little, and 2x if the speaker has a lethargic pace (cough, Sam Harris, cough) or spends a lot of time saying dopey stuff (cough, Joe Rogan, cough, gee, I must be getting sick). So my point is that I go through a lot of them.