Negative knowledge? Try actual knowledge, not made-up wishful thinking.
Where does it come from? Pick up a book Dell, preferably a college-level physics book, and read.
I say you are finding things by research, context clues, and guessing. It's up to you what you want to call it.
Sorry aft, I should have included as knowledge posted in a negative context.
It's nice of you to conceed that I am finding things with my methods. which demonstrates that you agree my locating methods do work, regardless of what I call them.
Actually most of my knowledge comes from trial & error experience. For me, book learning is too time consuming. Like you, I could spend a lifetime reading what others have learned about physics and still never cover every detail. I would again be like you, posting opinion based on assumption on something I had read that someone else had wrote.
What I post here is based on personal experience and realized fact. No I am not guessing, Aft. When I need information on Physics, I contact a Physicist, and get the information I need in order to know if I am proceeding the right direction with my own experiments, tests, and field studies.
Learning through the reality of personal experience may be a different approach than text book learning but knowledge, is still the end goal and it has permitted me to learn things in the field that may take years to find written in a text book.
That certainly doesn't make me any smarter than those with a formal education, but it does make more knowledgeable in the subjects I am well experienced in.
I post on here to share that field knowledge and experience with those who are interested. I don't say anything about my personal experience that can not be proven to be true.
The bottom line is, it's the positive results from the methods I use that count, and the reason that I use the methods. I'm happy to see you conceed that these methods do have the positive results that I claim.
If you have references from your physics books that have evidence that shows I am not doing what I claim to be doing, or that what I am doing is impossible, then I would be most interested in seeing those direct references that scientifically support the skeptic argument. Thanks! Dell