David_Gerard comments on Avoiding the emergency room - Less Wrong

7 Post author: NancyLebovitz 14 May 2013 08:23PM

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Comment author: Prismattic 15 May 2013 12:33:56AM *  4 points [-]

I'm pretty sure "driving the largest car you can afford" is a textbook case of everyone defecting in a prisoners' dilemma. A collision between two light cars is better than a collision between two heavy cars, but since the most disastrous outcome is to be in a light car colliding with a heavy car, everyone chooses the heavy car.

ETA: The above is wrong; see link in grandchild.

Comment author: David_Gerard 20 May 2013 08:47:39AM -1 points [-]

I'm pretty sure "driving the largest car you can afford" is a textbook case of everyone defecting in a prisoners' dilemma.

No. Look at crash test data: big cars have more room to crumple, so the dummy is considerably less damaged.