What if ethnicity was randomly assigned to individuals in society …
In the 1990s, a new sci-fi show focusing on a UN-esque space station, Babylon 5, also tackled the problem of ethnic conflict. In the episode “Geometry of Shadows,” one subplot, played mostly for laughs focused on one of the groups of aliens, the Drazi, that were mostly in the background during the series. But in this one episode, conflict breaks out among the Drazi. As the crew of the station investigated, they realized that there were two groups fighting each other. Every so often, their entire society fights. Once one has a green scarf, all greens become allies and all purples become adversaries. And then they fight. Once the fight is over, the winner gets to unify Drazi society. [link] [h/t]
Snippets of random 