Language evolution can resemble biological evolution. This is an example of how biology can provide insights about innovation in non-biochemical systems.
Pottery is impervious to decay, even when submerged in water or soil for thousands of years. That property is essential; without the invention of pottery, civilization and the modern world would not exist.
Child’s play is child’s work, and Hide & Seek is not the innocent game it seems. Like so much of life, it is really a game of survival, of life and death.