The paper-making industry would inspire the creation of nori (海苔) in the 18thC. Using similar techniques to paper production, seaweed was shredded, moulded and dried on racks, creating sheets of edible algae.
Nori would come to play an important role in Japanese cuisine🙌
Seaweed came to be known as the "Gambler's Grass" because it is super sensitive to environmental change. Villages that solely depended on the algae found out the hard way that harvests were temperamental.