No human could run a mile in less than four minutes until Roger Bannister did it. Scientists had proved it physically impossible, and proclaimed it loudly.
Certainly, I think Litz will get to the bottom of this question, because he is committed to the process of learning new things. Until then, I am not going to dismiss out of hand what others are reporting, and what I have seen to some extent. Ignorance is not a defensible position for claims of fact.
