… OP could study a line from the Sicilian Najdorf and commit it to memory. ... And what use does that give him? ...
In this thread, is anyone advocating that?
"... I feel that the main reasons to buy an opening book are to give a good overview of the opening, and to explain general plans and ideas. ..." - GM John Nunn (2006)
It's called analogical reasoning friend. It's a rhetorical device to prove a point.
If you are proving a point related to what was actually said, why not refer to what was actually said?
Beginners are taught to play e5 against e4. Is e5 the appropriate reply for beginners? I propose d5 as the most practical reply. Scandinavian Defense should be the 1st opening or defense lesson.