So if someone has a "seemed like a good idea at the time" experience, you ignore the unexpected bad results and go with pure theory? Electronic manufacturing is at least 50% experience. Now that I think of it. I've heard the word "miracle" used more often than "science" used by the top people. And with people theory goes even more astray. And a guy on the radio who sounds like he has researched places with legalised assisted suicide basically pointed out how it doesn't occur according to theory.