Hey guys, I was thinking about this for a while now and I seem to be on a dead end. So here it is, this is my speculation. I would love some feedback, tell me which parts are correct/false and if they are false, guide me towards the right path! :) 1. Photons can technically be their own antiparticle. 2. They don't annihilate because they are bosons and can occupy the same quantum state. 3. In many Feynman diagrams we see a particle & antiparticle annihilation producing another particle and antiparticle pair. I was thinking thats why we get 2 photons in some other annihilation interactions (one photon, one antiphoton) I must be missing something. Is my logic flawed?