Look, in order to qualify as a lie, it would mean he had prior knowledge to the contrary. Since he’s making a statement about the future, that’s never possible. Therefore, no paradox either way. Furthermore, there’s no absolute restriction on how his nose works; it could malfunction (i.e. grow or not grow inappropriately or not) at any time.
I should have elaborated, this really isn’t a paradox if you consider two kinds of truths. Subjectively (himself) he knows he has said something that violates what he beleives is true and his nose grows. Objectively (everyone around him) he has infact told the truth and as a result because we beleive that his nose only grows when he tells a lie it appears as if there is a paradox occuring.
Point of order in re Sam Kujawski. That goddamned felafel place near me is closed about every fifth time I wheel up there because of some holiday or another. SON OF A BITCH. I swear to god those guys have more holidays than… than… than conjoined twins where the two heads subscribe to different religions. Or something. I’m just saying, often I tell people with full confidence that I’m going to go satisfy my felafel pita addiction and wind up with a paradoxical nose.
Disagree with Sam Kujawski. If you put a sandwich shop in a box during lunchtime and refuse to look inside the box, the sandwich shop is both closed and not closed at the same time. More importantly, however, Pinnochio would not be able to get his promised sandwich in this instance on account of his local sandwich shop would be stuck inside a closed box. QED.