I can see your point in narrowing it down, in order not to get stuck in arbitrary questions. It is that fine line of thinking neither too much, nor too little.
I am reminded of the words of Naguib Mahfouz:
“You can tell whether a man is clever by his answers. You can tell whether a man is wise by his questions. “
But just as well by the Italian proverb that “a fool can think of more questions than seven wise men can answer.”
Perhaps the Art is in that hint of foolishness, where we light-heartedly ask all sorts of things while being more intrigued by the dialog than by finding the ultimate truth?