Festivals and mass gatherings can empower and inspire people making lifestyle changes for a sustainable future, according to new research from a vegan festival which suggests the power of these collective experiences may have been underestimated. Festivals and mass gatherings can empower and inspire people making lifestyle changes for a sustainable future, according to new research from a vegan festival which suggests the power of these collective experiences may have been underestimated. Social Sciences Political science Phys.org – latest science and technology news stories