[awb]

> because they use ill defined terms

All definitions are ill-defined if you're willing to question the words in the definition.

Maybe the point of philosophy is to uncover the weaknesses in our understanding of the word, rather than gain confidence in understanding it. So, asking "am I free?" helps me uncover my assumptions about the world and find out exactly how many levels deep I'm willing to go before I trust that the words in the definition are true.