There can only be controversy when either the truth isn't clear, or it doesn't matter. If we knew the answer, and it mattered, everyone would do it that way (a

There can only be controversy when either the truth isn't clear, or it doesn't matter. If we knew the answer, and it mattered, everyone would do it that way (and those who didn't would lose to those who did). e.g. religious wars: vi vs emacs OO vs fp