Any Program Has an Unlimited Number of Bugs

This may sound strange, but I will prove it: no matter how big or stable a piece of software is, it has an unlimited number of bugs not yet found. No matter how many of them we have already managed to find and fix, there are still too many left to count.

[image error]L'amico di famiglia (2006) by Paolo Sorrentino

Let's take this simple Java method that calculates a sum of two integers as an example:

int sum(int a, int b) { return a + b; }

This simple program has an unlimited number of bugs.

To pr...