Nature tends to get stuck in local optimums where things are "good enough". For reference see the recurrent laryngeal nerve, the "backwards" eye in many animals

Nature tends to get stuck in local optimums where things are "good enough". For reference see the recurrent laryngeal nerve, the "backwards" eye in many animals (though not octopuses or their relatives). We can do better than nature just by taking the best from everything, integrating it together, and removing all the extra junk. Imagine if we just used it as inspiration. I'm not saying tiny factories wouldn't end up looking like cells, but I expect the similarities to be superficial, as we have access to more robust materials to serve as feedstock and can have better control of the operating environment.