Non-operating activities include interest expenses, tax rates, and large non-cash items such as depreciation and amortization. By removing the non-operating effects, EBITDA gives investors the ability to focus on the profitability of their operations.
Thomas Edison once speculated: Genius is one percent inspiration and ninety-nine percent perspiration.
I do not believe that genetic predisposition has nothing to do with one's intellectual capacity. There is this one book I read entitled, 'How to Think Like da Vinci, that states intelligence is 40% innate and 60% hard work. Well, I think 40% is a bit too much because it shows how unfair life really is!! haha I believe that there are just some people who are gifted with more ability to learn than others.