Group 1 - The core viewpoint emphasizes the importance of investigation and research in solving societal problems, advocating for a focus on the world and the people rather than solely on officials and individuals [2][5] - Learning from global experiences, such as Singapore's urban governance, can provide valuable insights for improving city livability and competitiveness [3][4] - Engaging with the public and understanding their real needs is crucial for formulating effective policies, as demonstrated in poverty alleviation efforts [4][5] Group 2 - The article highlights the limitations of relying solely on officials and individuals for information, as their perspectives may be biased and not fully representative of the broader societal issues [5] - A comprehensive approach to problem-solving requires integrating diverse viewpoints and experiences, ensuring that decision-making is both scientific and democratic [5][6] - The synergy between learning from the world and listening to the people is essential for effective investigation and research methods [5][6]