Evolution Guides Cooperative Turn-taking, Game Theory-based Computer Simulations Show

The point is that it's ALL about evolution.

Evolution Guides Cooperative Turn-taking, Game Theory-based Computer Simulations Show:
"ScienceDaily (July 9, 2009) — It’s not just good manners to wait your turn – it’s actually down to evolution, according to new research by University of Leicester psychologists.

A study in the University’s School of Psychology sought to explain how turn-taking has evolved across a range of species. The conclusion is that there is an evolution-based “invisible hand” that guides our actions in this respect. What's more, the researchers have shown that this behavior can be simulated using a simple computer algorithm and basic genetic laws..

. . turn-taking has also evolved in many other species without language or the capacity to reach negotiated agreements. These include apes, monkeys, birds, and antelopes that take turns grooming each other, and mating pairs of Antarctic penguins that take turns foraging at sea while their partners incubate eggs or tend to chicks.

“It is far from obvious how turn-taking evolved without language or insight in animals shaped by natural selection to pursue their individual self-interests.”