Probability is expectation founded upon partial knowledge. A perfect acquaintance with all the circumstances affecting the occurrence of an event would change expectation into certainty, and leave nether room nor demand for a theory of probabilities.
I can't believe you just did that! Are you crazy?" I gripped the steering wheel tighter. "Why do people keep asking me that?" He turned to stare at me, his eyes worried. "Who else keeps asking you that? Are any of them doctors?