Human capital, like knowledge and skills, is crucial for economic growth at both individual and national levels. It is as important as physical capital like buildings and machinery. By investing in education and training, countries can boost their economies. The growth of human capital is both a cause and a result of economic growth. It involves not just passing on existing knowledge but also creating new knowledge. This knowledge spreads globally and drives economic progress, regardless of where it originated. Contrary to the idea that population growth hinders economic growth, investing in human capital can actually help countries grow economically even as their populations increase.