Left vs Right
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In 2009, the country of Samoa prohibited the sale of alcohol ---- for three days ---- tokeep people safe while the island nation switched from driving on the right side of the roadto driving on the left. The switch was so Samoans could get cheap "hand-me-down" carsfrom nearby left-side driving New Zealand and Australia. But Samoans weren't too pleased,since most of the cars they owned were designed to drive on the right. In fact, 2 out of 3earthlings drive on the right.But why? ... There aren't clear and obvious reasons to choose one side over the other,so the origin of driving conventions is a perfect opportunity for the mathematics ofgame theory and symmetry breaking. Or we can just look at historical evidence.Today's rules...
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In 2009, the country of Samoa prohibited the sale of alcohol ---- for three days ---- tokeep people safe while the island nation switched from driving on the right side of the roadto driving on the left. The switch was so Samoans could get cheap "hand-me-down" carsfrom nearby left-side driving New Zealand and Australia. But Samoans weren't too pleased,since most of the cars they owned were designed to drive on the right. In fact, 2 out of 3earthlings drive on the right.But why? ... There aren't clear and obvious reasons to choose one side over the other,so the origin of driving conventions is a perfect opportunity for the mathematics ofgame theory and symmetry breaking. Or we can just look at historical evidence.Today's rules...
