pointerChi ha inventato la progress bar?

NY Times:

“People wait for all sorts of things every day, sometimes more happily than others,” wrote the interface designer Bob Stahl in a 1986 article for Computerworld. “The problem is how the user feels about waiting.” At the time, machines were often slow and unreliable, and users didn’t always know when their programs crashed. A “progress bar” might mitigate frustration, Stahl suggested, by signaling that bits were flipping with a purpose somewhere deep inside the C.P.U.

Poco importa che non siano accurate: ci fanno comunque stare meglio.