>Light has no shadow
The light projected forward creates the shadow, but the light projected rearward cannot illuminate and remove the shadow.
Hypothosis: Light can create darkness(shadow) but it cannot overcome the darkness it creates.
>Light has no shadow
The light projected forward creates the shadow, but the light projected rearward cannot illuminate and remove the shadow.
Hypothosis: Light can create darkness(shadow) but it cannot overcome the darkness it creates.