Bottom-up, as a political movement, is a type of activism that focuses on the needs and concerns of local communities and individuals. It is based on the idea that the best solutions to social and political issues come from the people who are most affected by them. This type of activism is often seen as an alternative to top-down approaches, which rely on government or corporate entities to make decisions for the people. Grassroots movements are typically organized by local citizens and involve direct action, such as protests, petitions, and boycotts.