Hello, In a previous discussion of Pair production I was shocked by what I heard and I have some questions from the general explanation of the subject. So you can make fermions out of bosons? You can make rest mass out of energy? Does this mean that not just relativistic mass, but also rest mass is just energy? These are claims that are always shot down immediately anytime they are made around here with rest mass being implied as something more than energy, something mystical and intrinsic.