Check out the Atomic structures of a protein complex pressure sensor of the type that allows us to hear (see image below). It reminds me of two people dancing like on that wine label, Folie à Deux.
But it was awarded the Nobel Prize in Chemistry for 3D Views of Biological Molecules.
Maybe in the future advances such as this could allow us to repair hearing since it seems that birds can already do this, Owls hold secret to ageless ears. Just some futurestic stuff to think about.