I completely understand your point, what I am trying to say is that is not possible to judge everything with the same rules. Long ago some people used to think the earth was flat and long before that fire was "magical". Just because we didn't study something and didn't see some proofs, we can not say it doesn't work. As I said at my first post, I have been studying this for five years already and I had my skeptical moments of course and then I found some proofs and I am still studying, trying and learning.
On this path I had to admit many things fell into place like pieces of a puzzle, and you try to be judgemental and the facts prove you wrong. (A workmate asked me a question two months ago about something related with her ex husband, I made some calculations and told her to be careful and tried not to engage in useless discussions with him. Some days after that, she was absent for a couple of days. When I saw her again she was full of bruises because he battered her).
I felt so bad. I was not able to calculate the extent of the damage, but again, i am just a student, I make a lot of mistakes and although everything happened at the day and time I told her, I was wrong, it was not just a discussion. Believe me I felt awful. Now I ask myself. could i have prevented this from happening? I think not, but I don't know. I have lots to learn still.