i totally agree, whether it's trading or any other knowledge like programming, graphic design, or even cooking, acting, singing, painting...etc -u can get the basic guide from educational bodies but eventually u reach a point where u r the one responsible for taking that knowledge further, developing it, building on it- & if u have the right mix of talent, desire & hard work -u make it to b at the top of ur field. much useful video- well done & have a good day