As a graduate student, I wrote a long paper connecting the dots between mathematical models of learning and language development in children. It was published in a major journal.

It's natural to think that living things must be the handiwork of a designer. But it was also natural to think that the sun went around the earth. Overcoming naive impressions to figure out how things really work is one of humanity's highest callings.

You know that when Irving puts the dog in the car, it is no longer in the yard. When Edna goes to church, her head goes with her. If Doug is in the house, he must have gone through some opening unless he was born there and never left. If Sheila is alive at 9 A.M. and is alive at 5 P.M., she was also alive at noon. Zebras in the wild never wear underwear. Opening a jar of a new brand of peanut butter will not vaporize the house. People never shove meat thermometers in their ears. A gerbil is smaller than Mt. Kilimanjaro.

Societies that empower women are less violent in every way.

It is true that raids and battles killed a tiny percentage of the numbers that die in modern warfare. But in tribal violence, the clashes are more frequent, the percentage of men in the population who fight is greater, and the rates of death per battle are higher.

I try to jog in every city I visit, and I particularly enjoy harbour-front paths that let me ogle big ships, railroad bridges and the ruins of factories and warehouses.

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.