Of course the theory of evolution would be vacuous if it offered a glib explanation for every inexplicable act.

The reason the United States is not so likely to invade Iran is precisely because of the lessons learned from Iraq. And conversely, the Iranian push towards nuclear capability is calculated to deter invasions like the kind deposing Saddam Husain.

Broadly speaking, the Southern and Western desert and mountain states will vote for the candidate who endorses an aggressive military, a role for religion in public life, laissez-faire economic policies, private ownership of guns and relaxed conditions for using them, less regulation and taxation, and a valorization of the traditional family.

When people talk, they lay lines on each other, do a lot of role playing, sidestep, shilly-shally and engage in all manner of vagueness and innuendo. We do this and expect others to do it, yet at the same time we profess to long for the plain truth, for people to say what they mean, simple as that. Such hypocrisy is a human universal.

Fiction is empathy technology.

In many Muslim countries, witchcraft is not only on the books as a crime, but is commonly prosecuted. In 2009, for example, Saudi Arabia convicted a man for carrying a phone booklet with characters in an alphabet from his native Eritrea, which the police interpreted as occult symbols. He was lashed three hundred times and imprisoned for more than three years.

When a scientist considers all high-tech mental machinery needed to arrange words into ordinary sentences, prescriptive rules are, at best, inconsequential little decorations. The very fact that they have to be drilled shows that they are alien to the natural workings of the language system. One can choose to obsess over prescriptive rules, but they have no more to do with language than the criteria for judging cats at a cat show have to do with mammalian biology.