This chapter explores the spectrum of optimism and pessimism regarding the future of economies and societies. It examines the psychological, cultural, and ideological factors shaping optimistic and pessimistic attitudes, emphasizing their implications for collective futures. The chapter contrasts the views of optimists, who emphasize technological innovation, economic growth, and human progress, with pessimists, who warn of resource limitations, climate change, and systemic inequalities. Through historical and theoretical perspectives, it highlights how these attitudes influence societal behavior, policy decisions, and the trajectory of global development. The chapter concludes by advocating for a balanced approach that integrates optimism and realism to navigate future uncertainties.