I saw this sentence on a book:
Not replying works just as well as "I don't know."
I don't understand what it means. Is there any way to analyze its grammar? I know the phrase "just as well", but I'm not sure if it's still the same meaning in this sentence.
After thinking more about it, a new thought occurred to me.
Maybe I should take "not replying" as a noun, "works" as the verb in the sentence, and this sentence means that "not replying" is just the same thing as "I don't know." Is that right?