From Herb Schaltegger:
(Stuf4) wrote:
(But I'm open to considering alternative explanations as to why NASA
scaled back to five member crews post-51L.)
You've already been given the best alternative explanation and
disregarded it.
"Best" is a subjective term. Consideration of alternatives doesn't
require adoption. Along with that, I am certain that you and I have
not covered all possible aspects to this issue.
~ CT