You could argue that almost nothing in this game can be "proven". However, the statement I gave is what the majority of people believe, and unless there is factual evidence, or even strong circumstantial evidence, to support your theory, people shouldn't be told that there is a luck factor in training. You seem to think that I am vigorously defending my view, but it seems to me that everyone in this thread agrees with my point of view and accepts it as fact. No one yet has agreed with you.