[elendilm]

If only stating the obvious was a fallacy :)

You appear not to have understood probability theory my friend. You will never get 100% in this universe for anything. What if "its a simulation" or "a dream" arguments ensures you never acheive 100%.

Bayes probability theory will be a good start for you.

https://en.wikipedia.org/wiki/Bayes%27_theorem

[maxbond]

Well, I do agree that all measurements contain error, but the point wasn't that the error rate would be greater than 0% but that a single headline summary of error can't always distinguish between good and bad tests.