I agree with other commenters: it's all about the content. I listen to most podcasts at 2x at least because they often are too much chatter or are repeating th

I agree with other commenters: it's all about the content. I listen to most podcasts at 2x at least because they often are too much chatter or are repeating things I know. But sometimes I pause them to think when something new arises. In other cases, like some types of YouTube videos, I watch at 0.75x because they are way too fast and have no white-space, way too dense. And in all of this, the MAIN thing I learn is WHAT the podcast was. I don't learn the deepest understanding of some subject. I learn THAT the subject exists (a very specific bit within a subject sometimes). Here and there, I encounter some truly applicable, practical concepts, and then I have to put them to use and revisit them in order to really learn and master them.