You left out the answer "It doesn't matter to me," which is where I stand. Regardless of whether or not the story was based on an actual person, that person didn't walk on water, turn water into wine, and rise from the dead. Since that basically sucks the entire point out of the narrative, all that is left is an inconsequential question.
Even if the open windows of science at first make us shiver after the cozy indoor warmth of traditional humanizing myths, in the end the fresh air brings vigor, and the great spaces have a splendor of their own - Bertrand Russell
