What makes something "fun"? Does freezing your buns off, bruising your body while defying death and pushing yourself to exhaustion constitute fun? When put that way, it does not sound like all that much fun, yet, I must admit I had fun skiing yesterday. Different people have different ideas of fun and the same person can have fun in ways that may appear to be polar opposites (e.g. I also enjoy being warm, uninjured, rested and nowhere near death -- say watching a movie). Princeton's Wordnet defines it as "activities that are enjoyable or amusing". This seems to miss the mark for me, because it begs the question, what is enjoyable and/or amusing? While subjective definitions abound, I'm not sure I've stumbled upon a universal blanket definition for fun that would describe it objectively. Is a smile involved? Is there a center of the brain that needs to be active? Does adrenaline play a role? Is there something that is fun for everyone?
While I don't think I'll be much use in clarifying the matter (at least not today), Brent Fontana (donut boy) delights us with an enjoyable assortment of five dozen donuts, so come on down and be amused by the selection. Fun!