is Pool really a sport?

Is Pool really a sport?

i am sitting in the swiss airlines business lounge in geneva waiting to board my plane to new york. i thought i would take a nap and then i noticed a television in the corner of the lounge. i walked over to watch and saw it was an international pool competition. i hate playing pool and i really hate watching others play pool. i just do not understand its appeal. to me it is like watching a game of connect four. (god i love playing connect four- but i would hate to watch other people play) and pool is an official sport right? which makes me ask "what constitutes a sport?" does the ability to sweat physically and or mentally decide its classification.

is my plane here yet?