I always listen at regular speed. Well, if the story is engrossing enough (The Fall of Civilizations podcast's episode about the Aztecs/Mechica, for example),

I always listen at regular speed. Well, if the story is engrossing enough (The Fall of Civilizations podcast's episode about the Aztecs/Mechica, for example), then one episode turns into a week-long series of listening sessions and sets a great mood for the whole week. If it all works out well.