The three sites suggest that vegetal food processing, and possibly the production of flour, was a common practice, widespread across Europe from at least ~30,000 y ago. It is likely that high energy content plant foods were available and were used as components of the food economy of these mobile hunter–gatherers. https://www.pnas.org/content/107/44/18815 great fun
Anticipated: https://ignota.org/products/the-carrier-bag-theory-of-fiction https://openlibrary.org/works/OL15828929W/Woman's_creation https://www.kirkusreviews.com/book-...ans-creation-sexual-evolution-and-the-shapin/ (My own take: the early manufactured tool (sticks and rocks being mostly "found" in the early days) was rope or braided twine, used to ease shallow water wade foraging - which likely predated even bipedal locomotion, let alone landscape foraging, imho)
