When Grandpa Was A Boy, Were There Any Dinosaurs?

Tag archive: Pittsburgh

Criminal Genius

1995: Justin Kruger and David Dunning illustrated their article “Unskilled and Unaware of It” with the example of McArthur Wheeler, who robbed two Pittsburgh banks in broad daylight with no obvious attempt at disguise. When arrested shortly afterwards, Wheeler expressed surprise that the lemon juice he had rubbed on his face had failed to make him invisible to surveillance cameras. Why lemon juice? Because lemon juice can be used as invisible ink, so, as any fool knows, rubbing it on the skin obviously makes one’s features invisible. In their article in the Journal of Personality and Social Psychology, Kruger and Dunning argued that, not only are the McArthur Wheelers of this world incompetent, but their incompetence means that they don’t realize they are incompetent.

Source: Journal of Personality and Social Psychology, December 1999

Silver Lining

1981: The economic recession of 1981 to 1982 forced the closure of many steel mills and factories in Pittsburgh and throughout Pennsylvania. This produced a sharp reduction in air pollution. Measured in terms of total suspended particulates, or TSPs, pollution fell by a quarter between 1980 and 1982. The improved air quality led in turn to a decline in infant mortality caused by “internal” causes (respiratory and cardiopulmonary deaths, for example). While the number of births in Pennsylvania increased by roughly 3,000, the number of infant deaths actually decreased: from 1,815 in 1980 to 1,595 in 1982. So, each year, 220 infants lived who, if it hadn’t been for the recession, would have died.

Source: www.nber.org/papers/w7442.pdf