[passthefist]

I think accuracy is worth discussing, because even a 99% accurate system can produce poor results if the signal it's searching for is rare. Wikipedia has some good examples about this.

https://en.wikipedia.org/wiki/Base_rate_fallacy#Examples

One of the examples is about terrorism, with 100 out of 1 million people being terrorists and a 99% accurate system. Being 99 percent accurate, 99 out of the 100 terrorists will trigger the alarm, but so will about 9,999 law abiding citizens. Given an individual that triggered the alarm, there's a less than 1% chance they're actually a terrorist.