Does the phrase “little does/did (s)he know” mean the person knew nothing at all?
Or does it literally mean that there was some (little) knowledge?
I started pondering the specific meaning when I read the opening titles of Star Wars Episode VI:
Little does Luke know that the GALACTIC EMPIRE has secretly begun construction …
In this instance, I believe he did know nothing at all about those sinister schemes.
So, is it just a figure of speech to express that some poor soul should have known?