Language pedants hew to an oral tradition of shibboleths that have no basis in logic or style, that have been defied by great writers for centuries, and that have been disavowed by every thoughtful usage manual.

If you aren't just brought up in your tribe but interact with other people either directly or vicariously, through journalism and literature, you see what life is like from other points of view and are less likely to demonize them or dehumanize others and more likely to empathize with them.

Everyone's pedigree merges into everyone else's pedigree. So if you go back far enough, everyone is related.

As many political writers have pointed out, commitment to political equality is not an empirical claim that people are clones.

As women are empowered, violence can come down, for a number of reasons. By all measures, men are the more violent gender.

Many artists and scholars have pointed out that ultimately art depends on human nature.

I have never been a fan of science fiction. For me, fiction has to explore the combinatorial possibilities of people interacting under the constraints imposed by our biology and history. When an author is free to suspend the constraints, it's tennis without a net.