Thomas Edison who made a light say “that he know so many result  because when he find the way to made a right he find 1000 way that impossible” 1000 way that impossible it good more than you didn’t do anything.if you want something that you want to do please do it but that not illegal and make the people got a problem.if anyone tell you that you want to do that impossible. if you din’t do it you never that thing you want to do may be it possible.like aircraft you know nobody say that possible but someone can make it.