Exhausting one’s case is, unfortunately, something only lawyers understand. That’s one reason so many of them are good at pushing the limits.
Not every idea, not every argument, not every method of persuasion needs to be made. Once we get a clear enough picture to remove doubt that is “reasonable”, it’s time to end arguments and begin deliberation. Losers try to keep argument going as long as they can because they are unhappy if everyone doesn’t agree with them.
Proof, evidence, and especially self-evidence, don’t need long explanations. Once things are seen for what they are, it’s time to choose.