Dustin certainly has the schooling to come up with an answer. He is well-versed in such conditions as apophenia ("the belief that random and meaningless things are connected") and scopaesthesia ("the prickle on the back of your neck when you sense that someone you can't see is looking at you"). But as someone who is struggling to differentiate between the actual and the imagined himself, the truest response to the question may be "life."