Personally, I find that completely uninformative. Others find it helpful and I won't deny their experience, but I find that no more convincing that proper arguments about the 3 door version.
My variant was not intended to assist explaining the original, it's a variant intended to make people think again. It often exposes non-understanding in those who will blindly and automatically say "Switch".
Here's another variant. 12 doors, I let you choose 3. I then open 4, leaving your chosen 3 and 5 others.
I let you keep your original choice, or give them up to choose only one of the others. Should you switch now?
My variant was not intended to assist explaining the original, it's a variant intended to make people think again. It often exposes non-understanding in those who will blindly and automatically say "Switch".
Here's another variant. 12 doors, I let you choose 3. I then open 4, leaving your chosen 3 and 5 others.
I let you keep your original choice, or give them up to choose only one of the others. Should you switch now?