But not all complexity that we see is needed for precise expression. Like, if romance languages like Spanish and French did not require nouns and adjectives to agree on gender, but instead only the noun needed to carry gender info, that would not obligate the vocabulary to get more complex.
Similarly English has rules about the order of adjectives (Clifford is a big, red dog, not a red, big dog) and the presence of those rules didn't simplify the vocabulary.
Similarly English has rules about the order of adjectives (Clifford is a big, red dog, not a red, big dog) and the presence of those rules didn't simplify the vocabulary.