"Energy can be conerted into matter" Okay so I'm not scientific genius. Just got a question to ask. Lets propose that the big bang was correct - the only thing existing before the big bang was energy. Energy gets converted in matter and BAM. Particle accelerators convert energy into subatomic particles, for example by colliding electrons and positrons. Some of the kinetic energy in the collision goes into creating new particles. However, in the time before the big bang nothing was present. So that means there were no electrons, etc. So if you create matter using electrons then that means nothing can be created without them. So in order for matter to be created at the big bang, electrons would have had to be already present. Isn't that circular reasoning? Can someone please help me better my argument?