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the Nation+2006.pdf · covered coffee beans. Caffeine and tequila are helpful reminders that, one way or another, we have been med- dling with our brains since time immemorial. But

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Page 1: the Nation+2006.pdf · covered coffee beans. Caffeine and tequila are helpful reminders that, one way or another, we have been med- dling with our brains since time immemorial. But
Page 2: the Nation+2006.pdf · covered coffee beans. Caffeine and tequila are helpful reminders that, one way or another, we have been med- dling with our brains since time immemorial. But
Page 3: the Nation+2006.pdf · covered coffee beans. Caffeine and tequila are helpful reminders that, one way or another, we have been med- dling with our brains since time immemorial. But
Page 4: the Nation+2006.pdf · covered coffee beans. Caffeine and tequila are helpful reminders that, one way or another, we have been med- dling with our brains since time immemorial. But