Like many nerds, I have an interest in cryptography rooted in the wartime exploits of codebreaker and Ur-computer scientist Alan Turing. So I’ve followed with interest IEEE Spectrum’s reporting on the ...

Around A.D. 1250, seeking refuge from some unknown threat, the Anasazi migrated from open villages to nearly inaccessible dwellings. A generation later, they moved again. Douglas Merriam In 1874, an ...