The same is true for academic lectures. As much as I delight in viva voce exposition delivered before a properly proximate audience, I am much more likely to listen to lectures while driving, cooking, or making illustrations for the Tactical Notebook. (How’s that for a shameless plug for my other Substack?) Indeed, if I wished to replace the two or three learned podcasts I enjoy each day with scholarly speeches of the old fashioned kind, I would have to hire an adjunct professor.