Hello everyone! Two days ago I uploaded a post about my article on which I am working I uploaded it on medium also and also on this platform to get the review and arguments One of the people addressed me that I have combined two equations that in the sense can’t combine He clarified me that the equation E=mc^2 is for massive object while E=hf is for massless objects like photon and he about addressed me that f=1/t is applicable for reputation not for proper time I recognize my fault but he appreciated my curiosity I learnt a lot from this experience I have recognized my flaw that a lot

What do you think about that incident I am keen to know about that?