And the bottom line is the process of testing depends on luck
"Program testing can be used to show the presence of bugs, but never to show their absence!" - Edsger W. Dijkstra
A major break with this tradition came in the 1980s when the fourth Labour and fourth National governments enacted a series of reforms based on free market ideology. This reinforced many New Zealanders' distrust of intellectual theory, as many consider that the reforms increased poverty and inequality in New Zealand.
They're just scared of what's happening to the other "intellectual" nations, that's all.
So what the hell is Windows and OSX?
Exactly the question I've been asking myself my whole life...
"All the people are so happy now, their heads are caving in. I'm glad they are a snowman with protective rubber skin" -- They Might Be Giants