That is a very interesting observation. It seems that some neural pathways are way shorter over audio ( i guess because we have perfect hearing from birth , un

That is a very interesting observation. It seems that some neural pathways are way shorter over audio ( i guess because we have perfect hearing from birth , unlike vision ), so that the "effort" to read, comprehend and store !text! information is much less. I guess that's the reason we still have classes in schools. Orally teaching is very very old.