The problem is that atomicity can be loosely applied to almost anything. This sentence is atomic. Each sentence is an organelle, comprising molecules (words) that themselves comprise atoms (individual letters). This whole abstraction really doesn’t do much. It’s just a trendy fad to break things apart into atomic components. It distracts from the really important stuff, that is, your actual writing output.
1) Pick a whole area, not just one idea. I (Ward) like subject matter that is practical but seldom explored in a text book. You know, the kind of stuff you have to learn from your colleagues on the job. The discussion on the "patterns" list got me thinking about checking data.
[…] See Tips For Writing Pattern Languages and The Idea Compass to find out what forces are acting on your Solutions.
And as Pattern Languages can be viewed as a Directed Acyclic Graph (DAG) of patterns, see Aspects of Pattern Relations.
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Scott P. Scheper, Antinet Zettelkasten (San Diego, CA: Greenlamp, 2022), pdf 
, p. 161)