Well as I understood it isn't the photons that interacts with the other photons, it's the way the cold molecules interact as the light passes through it that ch

Well as I understood it isn't the photons that interacts with the other photons, it's the way the cold molecules interact as the light passes through it that changes the light course in a way that, if we would look only at how photon is traveling in the atoms, looks like it is interacting with the other photon. I may have misunderstood it, but if it works that way then any structures would disappear almost instantaneously.