Comment by marcosdumay

Why baseball? You don't use the number 3 in any other context?

If you write a lot of code, the odds of something repeating in another place just by coincidence are quite large. But the odds of the specific code that repeated once repeating again are almost none.

That's a basic rule from probability that appears in all kinds of contexts.

Anyway, both DRY and WET assume the developers are some kind ignorant automaton that can't ever know the goal of their code. You should know if things are repeating by coincidence or not.