Interesting video. I do some painting and have a deep interest in all mediums. What has always astounded me over the years is what your eye sees and what your brain wants to see. I have several books on Rembrandt and I love to study his sketches. With pen and ink and a bare minimum of lines and indications, he can create a huge panoramic landscape. Seen in isolation, the drawing looks like a disjointed collections of scrawls and squiggles, but your eye and brain assemble and fill in whatever is missing to create what the artist intends. Fascinating, as Spock would observe.