The other industries you mention have gone through similar changes though haven't they? Not long ago, "idiot", "imbecile" and "moron" were all terms with strict

The other industries you mention have gone through similar changes though haven't they? Not long ago, "idiot", "imbecile" and "moron" were all terms with strict definitions in the field of medicine. Languages, terms that are strictly defined, even terms that are particular to a science or industry, evolve over time.