"But closed minds are more dangerous than either." Guest

You just don't reach hoary years without having considered many things, many options, many possibilities, over and over. I would guess that old people are less closed minded than the young. It is a process.

As Bill D says in another connection (paraphrasing: "I would love to be given what I consider irrefutable proof or overwhelming evidence as to what you say. That evidence is lacking."

Not that you've reached the hoary years, Bill. :)