According to the theory of evolution, when a species encounters a crisis that threatens its very existence (for example, some kind of significant change in its physical environment), it must either adapt or risk extinction.
I believe the human species is facing a crisis that threatens its very existence. I’m not talking about a crisis arising from a change in the physical environment (though, of course, manmade climate change may well present such a crisis). I’m talking about the crisis that arises from a lethal combination of two factors: first, our ongoing inability or unwillingness to tolerate difference, and second, the increasingly easy availability of deadly technology.
Simply put, if we as a species do not learn to get along, sooner or later some group or nation is going to unleash destruction on an unprecedented scale. It’s a question of when, not if. If that happens, the best case scenario is that we will move (or rather regress) into an era of harsh authoritarianism in which the freedoms we cherish will be removed from us in an effort to enforce some kind of artificial “peace”. The worst case scenario is that it will be game over for the human race. Perhaps small pockets of humanity will survive here and there, but as a civilisation we will be back to the drawing board. Maybe that’s what it’s going to take for us to finally learn to live together.