[cs702]

> While I could solve all the problems in the article, I doubt I could solve any but the simplest if I was shown 1 image per day over 12 days and not allowed to write anything down.

This is true for me too. Even 1 image every minute over 12 minutes would be quite difficult for me. I'm not sure I could solve any of these problems without being able to look at the figures side-by-side, back-and-forth, again and again, until I get an "aha!" moment.

On a related note, I have found that revisiting old information multiple times over sometimes longish time spans and unconsciously comparing it with newer, fresher information often helps me gain insight and greater depth of knowledge.