Wow! Thanks
Sunfish, that was a fascinating (if somewhat tricky) read. But it was well worth seeing the layers being peeled back. What one then finds is, of course, a system designed, built and operated by human beings and we know that humans are very good at fooling themselves. For the most part we get away with it but, Feynman's closing words in that report are superb:
For a successful technology, reality must take precedence over public relations, for nature cannot be fooled.