We used to build civilizations. Now we build shopping malls. - Bill Bryson

I mused for a few moments on the question of which was worse, to lead a life so boring that you are easily enchanted or a life so full of stimulus that you are easily bored. But then it occurred to me that musing is a pointless waste of anyone's time, and instead I went off to see if I could find a Baby Ruth candy bar, a far more profitable exercise.

According to an opinion poll, 13 per cent of women in the United States cannot say whether they wear their tights under their knickers or over them. That's something like 12 million women walking around in a state of chronic foundation garment uncertainty. Perhaps because I so seldom wear ladies' clothing I don't fully appreciate the challenge involved, but I am almost certain that if I did wear tights with knickers I would know which was on top. More to the point, if a stranger with a clipboard came up to me in the street and asked me how my underwear was configured, I don't believe I would tell him that I didn't know.

Absolute brain size does not tell you everything — or possibly sometimes even much. Elephants and whales both have brains larger than ours, but you wouldn't have much trouble outwitting them in contract negotiations.