Digital fungus is a result from an ongoing research in the field of dynamic identities.
It's an digital organism which is released in a physical space, the organism is trained to respond to light areas in the environment, as soon as an organism finds light it starts producing a colony.
If the organism detects a motion in the area it will release itself from the surface and floats to another area where it will start growing again.
The organism depends on light for its energy, once the light is gone the remaining energy of the organism is drained causing it to die.
This simple set of rules results in a complex behaviour.