How do Planck's photon theories relate to the belief that all forces may be unified at high speeds? I understand that light waves can act as particles, and particles can act as light waves. Waves/particles emit energy. And Planck's scale is believed to be around the length of convergence of all forces. But besides this, is there a connection between Planck/Einstein's theories and the work being done to speed up particles in an attempt to clash them?