You're insane. I say that not because you disagree with me, but because you have tried to turn an informal discussion into a math problem, apparently thinking i

You're insane. I say that not because you disagree with me, but because you have tried to turn an informal discussion into a math problem, apparently thinking it would be in any way persuasive. For the record, the final line of my comment was intended to mean, basically, "If you don't think airplanes built my amateurs are dangerous, then we're not going to get anywhere, because I would consider you insane." Whatever else you got out of it is your own invention.