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COLUMNS Physica • The Quantum Eraser The quantons of the microworld need not be waves or particles; they can be a little bit of each HANS CHRISTIAN VON BAEYER
ESSAYS & COMMENT Requiem for an Overachiever Inspired guesswork, a forty-year-old manuscript and a little-known creature that struggles upstream in the hindgut of a termite may point to the origins of all nucleated cells LYNN MARGULIS AND MICHAEL F. DOLAN
FEATURES Swimming Against the Current The ubiquitous Furby and other interactive playthings offer a window into the digital environment of the near future, dense with intelligent machines MARK PESCE
A Mind Overflowing From the Codex Leicester, Leonardo's musings on water THOMAS D. DILLEHAY
The Battle of Monte Verde The 2000 Olympic Games will test the mettle of every competitor. But are the bounds of human athletic performance anywhere in sight? GUY C. BROWN
The Deadliest Virus Almost invariably fatal, able to hide for years in the deepest recesses of the body, rabies is finding new victims among wild animals and in a few unsuspecting people LEONARDO DA VINCI
REVIEWS Cover Story • Appraising Grace What evolutionary good is God? DANIEL C. DENNETT
Books in Brief • Stream of Consciousness PLUS: Hazing young doctors; kinetosplatics
DEPARTMENTS Initial Conditions • Editor's Notebook Private Matters PETER G. BROWN
Peer Review Letters from Readers
Working Hypotheses • Impossible RODNEY W. NICHOLS
Quanta Black holes: still no exit; watching little memories being born; feel the noise; a gene for asymmetry
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