There's a flaw in the analyses that claim bike travel is more expensive than motor-powered travel. They're comparing a cyclist who feeds herself vs. a starving motorist. In reality, the motorist also needs to eat, and frequently consumes more calories than he needs in a day out of boredom or fatigue. The cyclist on the other hand, thanks to the appetite-suppressing function of exercise, may be eating fewer calories than she needs.
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Cars kill 45,000 Americans every year.
This is like losing a war every year, except without the parades.