"Oh, but the computer is doing the right more often than (9.4608e+16)-1 times out of 9.4608e+16 times!"*

Yes.. but that's "less than" a single mistake per year, per computer. How many cores do your data go through per year ?

* Totally made up, rough number of cpu ticks of a 3 ghz core in a year.

Still, the point I'm trying to make is that with the mind-numbing number of actions carried out by another mind-numbing number of machines on a third absolutely mind-numbing number of bits every year, you will need a metric fuckton of zeroes after your decimal point, before it's "not going to put innocent people in jail".