Sounds like you're doing what Mortimer J. Adler and Charles van Doren would call "inspectional reading" and outlining the space of your topic. This is both fine and expected. You have to start somewhere. You're scaffolding some basic information in a new space and that's worthwhile. You're learning the basics.

Eventually you may come back and do a more analytical read and/or cross reference your first sources with other sources in a syntopical read. It's at these later two levels of reading where doing zettelkasten work is much more profitable, particularly for discerning differences, creating new insights, and expanding knowledge.

If you want to think of it this way, what would a kindergartner's zettelkasten contain? a high school senior? a Ph.D. researcher? 30 year seasoned academic researcher? Are the levels of knowledge all the same? Is the kindergartner material really useful to the high school senior? Probably not at all, it's very basic. As a result, putting in hundreds of atomic notes as you're scaffolding your early learning can be counter-productive. Read some things, highlight them, annotate them. You'll have lots of fleeting notes, but most of them will seem stupidly basic after a month or two. What you really want as main notes are the truly interesting advanced stuff. When you're entering a new area, certainly index ideas, but don't stress about capturing absolutely everything until you have a better understanding of what's going on. Then bring your zettelkasten in to leverage yourself up to the next level.

• Adler, Mortimer J. “How to Mark a Book.” Saturday Review of Literature, July 6, 1940. https://www.unz.com/print/SaturdayRev-1940jul06-00011/
• Adler, Mortimer J., and Charles Van Doren. How to Read a Book: The Classical Guide to Intelligent Reading. Revised and Updated edition. 1940. Reprint, Touchstone, 2011.

reply to u/jack_hanson_c at https://old.reddit.com/r/Zettelkasten/comments/1g9dv9b/is_scoping_the_subject_a_counterzettelkasten/

Choosing an external system for knowledge keeping and production forces the learner into a deliberate practice and confronts them with their lack of understanding. This is a large part of the underlying value not only of the zettelkasten, but of the use of a commonplace book which Benjamin Franklin was getting at when recommending that one "read with a pen in your hand". The external system also creates a modality shift from reading to writing by way of thinking which further underlines the value.

What other building blocks are present in addition to: - modality shift - deliberate practice - confrontation of lack of understanding

Are there other systems that do all of these as well as others simultaneously?

link to Franklin quote: https://hypothes.is/a/HZeDKI3YEeyj9GcNWKX4iA