This person argues that one should cultivate a personal library, the tangibleness of the physical, to safeguard knowledge and prevent information control from falling to a single institution or person, so that they may never control the past.

I think he should go deeper into his argument, I do not fully understand what he means.

The Reading Brain in the Digital Age: The Science of Paper versus Screens https://www.scientificamerican.com/article/reading-paper-screens/ by Ferris Jabr Scientific American 2013-04-11 A good overview of reading practices, reading user interfaces, and research literature relevant to it. Lots of abstracts from research which I ought to look at more closely, and thus didn't make note of as much as I'd rather delve into the primary sources.

Most of the research cited here is preliminary to early e-reading devices and has small sample sizes. Better would be to see how subsequent studies have fared with larger and more diverse groups.