Again note taking is the wrong tool for fact-based acquisition. Apparently this is not advice given in most sources. Spaced repetition and mnemonic methods are far better suited for memorizing and remembering basic facts.

Take notes on the surprising and unique. Take notes as writing you'll reuse later. Take notes to understand.

Historian John Burrow brooded over the definition of the atomicity of an idea in his autobiography Memories Migrating (2009).

Individual facts link together into small networks to create context for each other.

For deep understanding the elaboration method may be the best tool, but may not be the best choice for learning isolated encyclopedic facts.

By learning isolated facts do they really mean memorizing here? In which case, perhaps using mnemotechniques is the best way to create synthetic associative links by which to tie one's knowledge into their other mental frameworks of knowledge. If thought about this way one is really elaborating their knowledge in a synthetic manner instead of more naturally. Either way, you're doing some form of elaborating as a means of assuming the knowledge. Both forms are work, though slightly different.