If you look at the messages and ECC knowledge level of batareyka, you can easily figure that he is neither proficient in maths not in programming. For those who have been hammering around EC they can easily point out that EC has countless ways to surprise you when you think you got it but the very next level discovery shuts you down. I am convinced he has just found one of those surprises and didn't tried to reconfirm it. Whatever subtraction, addition, multiplication & division you do, Modular arithmetic will shut you down and at the end you are nowhere. Finally you don't get offended with Questions, the world we see today is a result of questioning.