Plastic bag, water (35 x 30x 5 cm)
Years ago I saw a white plastic bag that had been blown into the branches of a tree. It had become half-filled with rainwater in which, judging from the color, a microcosm of organisms had started to develop. A space colony. Plastic is made almost entirely out of oil, which on its part is the result of a few million years of compression of the remains of prehistoric zooplankton and algae, which have settled on the sea bottom under anoxic conditions.