The document discusses the bottom of the pyramid (BOP) population, which comprises over 4 billion people living on less than $2 per day across regions globally. It notes that the BOP represents a significant market opportunity for profitable business, contrary to assumptions, as seen in the example of Hindustan Unilever catering to India's BOP market with affordable products through innovative business models. To successfully serve the BOP, the document advocates designing appropriate products and services, creating awareness, and ensuring availability and affordability.