Riddle of the day

I'm at a loss as to which bit of this is so confusing:

"I have zero appetite at the moment. I'm really hungry because what with having no appetite, I haven't been eating."

I don't personally understand how someone with a reasonable ability to follow basic logic can find it so puzzling. Unless they like to snicker and laugh and be patronising for a living. Because "well if you're so hungry why don't you just eat, then, problem solved?" is the logical advice after struggling with aforementioned problem for three to four minutes which I received.

Hmmmm.

I'm very busy with reading and thesis and going out and general final year stuff, I am happy to report.