Why would the scale of suburban growth be impossible?

The scale of suburban growth is often limited by factors such as infrastructure capacity, environmental regulations, and resource availability. As suburbs expand, they require significant investments in transportation, utilities, and public services, which can strain local governments and budgets. Additionally, the increasing need for green spaces and sustainable development practices can restrict unchecked suburban sprawl. Lastly, social and economic dynamics, such as housing affordability and demographic shifts, can further constrain the feasibility of extensive suburban growth.