Children do not have to learn that streets are dangerous places by potentially fatal trial and error.

Even small cults are a serious cost on the world economy, to victims, their families, employers, friends, and credit-card companies.

Primates will continue to play social games without the least insight into what is killing them.

Could people be trained to be less gullible? Or are you as stuck with gullibility as you are with skin colour?

Evolution acts slowly. Our psychological characteristics today are those that promoted reproductive success in the ancestral environmen.

The rare person is still interested in new advances when they are adults. There is possibly a correlation with intelligence. In any case, you have to be fairly bright to keep learning and changing attitudes as you get older.

Cults, or related social movements such as the Taliban in Afghanistan, result in massive military expenses.