Also, eight seconds sounds like a terrifically long time for it to take effect. That's tens of billions of CPU cycles, billions of arithmetic instructions, mill

Also, eight seconds sounds like a terrifically long time for it to take effect. That's tens of billions of CPU cycles, billions of arithmetic instructions, millions of disk seeks, a hundred or so page loads, a dozen "knock knock" jokes in call-and-response between London and Sydney. How non-technical does one have to be to think "eight seconds" is fast in computer time?!