cons meaning
Pretty in Pink is close but still wrong. PROS are arguments IN FAVOR of the debate proposition. CONS are arguments OPPOSED to the debate proposition. So pros and cons are multiple arguments in favor of a propositon and multiple arguments against a proposition in an attempt to reasonably approximate the correct view. So it's a program for guessing the right view on incomplete information by insisting on multiple arguments about the subject of the debate (or the matter requiring decision).