Hi I am just wondering if E = mc^2 then wouldn't it also be correct to say 1/2mv^2=mc^2 since E is kinetic energy. So in order for an object to travel near light speed, it has travel twice (1/2v^2=c^2) the speed of light according to the above formulae. But according E=mc^2 light speed is the limit as energy turns into mass. This lead to the idea that no matter how advanced things are, unless preventing energy turning to mass, it's not possible to travel close to speed of light. Or is the entire derived above formulae incorrect? If it incorrect but is it really possible to travel close to light speed as a concept?