It was dark around, and nothing could be seen except the light source. Without the moon, we can't look in the mirror, flashlights can't focus light, light sources don't mean anything to us, and illuminated objects don't reflect light. Everything absorbs light, receives radiation, and finally gets hotter and hotter.
If there is no reflection, then the light either passes through the matter or is completely absorbed by the matter. If it can't reflect, but only absorb, then the temperature of the substance will rise, and when it reaches a certain level, it will emit visible light, which means it will become a light source; If it is transmissive, then we can only see the light source. Everything is either transparent or bold, or there is a light source.
If there is no reflection of light, that is to say, there is something wrong with the particle nature of light, there are still many things that need to be changed.