Watching video is harder than reading
This video (below) complains that we’re getting ever worse at focusing our attention
Personally, I find it much harder to focus on video than I do on reading. My preferred means of learning is reading, followed by listening, followed by video. I think it’s because reading permits you to focus your mind entirely on the content, rather than on the delivery.
Discovered (and well elaborated on) at the excellent Farnam St Blog