Final answer:
Friedman's conclusion points to the increased competition and need for adaptation in business and workforce due to advancements in technology and media globalization in the third stage of globalization.
Step-by-step explanation:
Thomas Friedman's conclusion about the great challenge for business and individuals in this third stage of globalization focuses on the transformative impact of technology, especially the Internet. According to Friedman, businesses now face heightened competition as globalization has allowed for firms from different regions and countries to compete on a greater scale. This level of increased competition, enabled by advancements in communications and information technology, means that both companies and individuals must adapt to a rapidly changing economic landscape. In particular, the United States must ensure its workforce is prepared for this dynamic environment to maintain its key economic role in the world. For many firms, the great challenge lies in staying competitive and innovative while managing the implications of technological and media globalization.