As a former UI guy, which did involve a fair amount of cognitive psychology and application of visual design principles, I still maintain that a real book, which registers as a real object, with real locations, is superior to a web page or eBook, which is essentially flickering lights representing 'pages' that do not exist in real space or persist in real time.

For many people, physical navigation leaves a much more easily recalled trail.

Human evolution and survival developed our brains in this way.

I would expect that most of the folks here on this forum are pretty visual people, hence the enjoyment and relative success with this hobby.