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Dick Stout

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Rolf William Landauer

Died 27 Apr 1999 at age 72 (born 4 Feb 1927).German-born American physicist known for his formulation of Landauer's principle concerning the energy used during a computer's operation. Whenever the machine is resetting for another computation, bits are flushed from the computer's memory, and in that electronic operation, a certain amount of energy is lost. Thus, when information is erased, there is an inevitable "thermodynamic cost of forgetting," which governs the development of more energy-efficient computers. While engineers dealt with practical limitations of compacting ever more circuitry onto tiny chips, Landauer considered the theoretical limit, that if technology improved indefinitely, how soon will it run into the insuperable barriers set by nature?«

Two college classmates met for

Two college classmates met for the first time in years.
"How goes it with you, Pete?" asked one.
"Not good at all," mourned Pete. "My wife ran away with the mail man, my son is a juvenile delinquent, my bank failed, and all my teeth will have to come out."
"Gosh, I'm sorry to hear that," sympathized the classmate. "What business are you in now?"
"Some old line," answered Pete. "Selling good-luck charms."
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