I think a better analogy is error correction code. Some redundancy in a language can be a good thing. Gender information may be redundant, but the fact that adj

I think a better analogy is error correction code. Some redundancy in a language can be a good thing. Gender information may be redundant, but the fact that adjectives agree in gender with their nouns, helps better distinguish what adjective refers to what noun. Same with pronouns. For example, the famous Jespersen's cycle[0]: in many languages, "I not know" eventually becomes "I not know a thing" (like in French "je ne sais pas"). "A thing" is completely redundant here, but it helps better understand that it's a negation, in case the first "not" was not heard. [0] https://en.wikipedia.org/wiki/Jespersen%27s_Cycle https://en.wikipedia.org/wiki/Jespersen%27s_Cycle