Video by itself is less information dense than text. 20 mintute video could've been a 2-5min read essay. Not to mention the convinience of being able to easily

Video by itself is less information dense than text. 20 mintute video could've been a 2-5min read essay. Not to mention the convinience of being able to easily re-read parts of it, and find reveland information instead of seeking the video.