I would rephrase it as: "Culture often encodes biological needs that we are not sure we did understand because nothing like that was written down and today we h

I would rephrase it as: "Culture often encodes biological needs that we are not sure we did understand because nothing like that was written down and today we have a very good idea of our biological needs and can probably design more consistent or at least more utilitarian rules of culture" Do you think you could agree with that?