Is that really why programs are slow: that programmers are misinterpreting a quote from Sir Tony Hoare? I thought it was because programmers tend to use fast co

Is that really why programs are slow: that programmers are misinterpreting a quote from Sir Tony Hoare? I thought it was because programmers tend to use fast computers, and they neglect to test on slow ones. Also they load their databases with test data that is much smaller than what the average user might have after using the program for a year or two.