The author clearly misses the mark. Not all hours are created equal. Or is it physical labor under the sun, constant exposure to the elements or a furnace more

The author clearly misses the mark. Not all hours are created equal. Or is it physical labor under the sun, constant exposure to the elements or a furnace more "leisurely" ...than sitting on a desk with air conditioning? This kind of comparison is exactly what gets you into financial crisis. Reading the data is only 1 side of the equation. Understanding its implications is, sadly, a major failing of most academics outside of risk management