Thanks for the clarification. As an anecdotal data point, I didn't recognize the storage class memory term, even though I'm quite interested in these topics, sometimes reading related research papers.

The abstract would have been more helpful had it alluded to the definition, for example "…of storage class memories (SCMs), such as flash memory, has been…".

Similarly, the term isn't defined on first use, and even following the footnote which strongly suggests definition/discussion of the same topic elsewhere ([21]), that particular term doesn't appear in the referenced Rosenthal "Keeping Bits Safe" article.

(Now I know, but I'm still not a fan of the term. At these levels of abstract analysis, it's all 'memory', and it's all being considered for 'storage', so storage class memory lacks vividness/contrast.)