Question

Suppose there were a crystal ball from which every person could receive one truth about something, and its truth could not be challenged.
A. My main question: would the Rabbi use it and reach philosophical certainty, as the Rabbi defines it, or would he prefer to investigate the truth on his own and remain with practical certainty (for example, whether or not God exists, and the like)?
B. A side question: if the Rabbi would use it, what question, for example, would the Rabbi ask?
Thank you, Rabbi 🙂