To err is human -- you're never safe. Even if we say people are the root of the problem, fixing their fundamentally imperfect nature is currently beyond the ca

To err is human -- you're never safe. Even if we say people are the root of the problem, fixing their fundamentally imperfect nature is currently beyond the capabilities of science, whereas doing something like enforcing constants at a language level is not. Education will reduce, but not eliminate, the chance of making such a mistake.