This chapter reminds me of an aspect of teaching in a different book (How Learning Works) that I have read for a course, where they emphasized that the way professors (and experts in general) organize information and the way students (and beginners) do it are totally different. For experts, information is organized in a huge interconnected web, whereas for students it is generally a lot of small bubbles. The main strength of the former is that it is quite robust, but the latter is more malleable since they have less information and more gaps between them. I think this is why teaching lateral thinking to young people is even more important: we can give them more ways to connect information and create webs rather than eventually settling on the same web that is passed down from professors. In this sense, perhaps we can think of gaps in these webs as spaces to explore and create and even teach students to intentionally leave some in their mind.