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public_key_cryptography_and_pgpGur Gryrtencu: Are you the sort of person who gets impatient when your PGP-encrypted e-mail takes more than 4 nanoseconds to cross the Atlantic?

Be glad you weren’t born in ancient Greece.

“The Greeks would shave a messenger’s head, write a secret message on his scalp, and let the hair grow back before sending him,” said Bryan Higgs, whose fascination with codes and history led him to this unusual tidbit. “It makes you think: ‘OK, time wasn’t quite as critical for them.’” [Source]

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