Cities are undoubtedly prime influencers of human civilization. Modern cities, coupled with advances in digital and mobile technologies, are increasingly "smart cities" and generate huge amounts of data that can be harvested, mined, and analyzed to support decision making for urban community leaders and activists. By the middle of the 21st century, over 68 percent of the world's total population will live in the cities. Today's cities are complex, multifaceted social organizations that demand thoughtful understanding and in-depth research. The think tank exists to meet these challenges of 21st-century cities and harness the opportunities to drive forward the welfare of cities and all who live in them.