"To get a feel for how
many energy slaves you have, imagine hiring 40 people to drag you and your car
down the street at 3 miles per hour. Replacing the energy in a gallon of
gasoline with human labor is imperfect, of course, because the people you hire
to drag your vehicle down the street cannot run 70 miles an hour.
The gallon (or four liters) of petrol will push your car about 25 to 30 miles at high speeds at a market cost of about $4. Imagine how much it would cost to pay 40 people to drag your 1.5-ton car 25 miles--a lot more than $4."
The gallon (or four liters) of petrol will push your car about 25 to 30 miles at high speeds at a market cost of about $4. Imagine how much it would cost to pay 40 people to drag your 1.5-ton car 25 miles--a lot more than $4."