Yes, I am discussing a different problem, and I don't think the original problem formulation gives enough information to distinguish between the 2 problems. Th

Yes, I am discussing a different problem, and I don't think the original problem formulation gives enough information to distinguish between the 2 problems. The answer can add assumptions, which is fine. I'm not passing judgement on Marilyn vos Savant. I do object to claims that the problem statement is sufficient to have a single answer, and based on that, I'd object to claims that somebody in that situation would be wrong not to switch doors. I would object on exactly the same grounds to anyone who tells you "you're wrong, there's a 50% chance of getting a car" (I might object further, on the grounds that the most obvious interpretation which gives that answer is inconsistent with this form of the problem statement).