Concerning your story on structured water,1 you may want to consider the other type of structured water, namely, inside proteins. My study of internal water is now dated,2 but it proved fresh insights, based on high-resolution crystallographic data, that went beyond single or groups of water molecules to discuss the role of hydrogen bonding in proton (electron) transfer. In fact, almost every place I looked, when water was structurally integral to macromolecules, it had functional significance, and nature went to great lengths to exclude water when it was in the way.

Edgar MeyerTaos, NM

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