I'm willing to give you that chance.
I have recently been learning why 'flat Earthers' and 'moon landing conspiracy' theorists persist in their beliefs.
The reason why - I surmise - is that they firmly believe in what they are saying - and simply ignore the evidence around them.
How do you prove the Earth is a sphere to a "flat Earther" who simply ignores the evidence?
Moon landing conspirators have even gone so far as to confront the actual Apollo astronauts (Buzz Aldrin and Gene Cernan) and get them to swear on a bible on camera. Buzz Aldrin punched the guy in the face!
...
I note that roo always wants to do the following:
1. Get the last word in - no matter what; and
2. Use short, sharp combinations of words to acutely make his point.
If my predictions are correct, roo will reply again.
If I decide to no longer reply in this thread - its nothing to do with accepting roo's challenge...rather, its more of a case of not being bothered to argue with someone who cannot accept the empirical evidence of the detrimental effects of nylon-sawing-against-nylon in a free-fall event (analogy: how do you argue with a moon landing conspiracy theorist?).
Never tie-in to a rock climbing harness with a knot that acts like a noose...all else is noise.