What Is Retirement?: A New Philosophy of Retirement for the Age 100 and Beyond 150

What Is Retirement? redefines retirement not as the end of work but as the beginning of a new stage of life. ᅠ Why should we prepare for retirement? ᅠ What makes retirement truly fulfilling? ᅠ How will artificial intelligence transform retirement? ᅠ How should people live in an era where healthy longevity may extend to 150 years? ᅠ Beginning with these questions, this book explains the true meaning of retirement while presenting a new philosophy for life after full-time work. ᅠ Through the vision of THE RUN AT 150 PROJECT, it places health, happiness, healthy longevity, lifelong learning, new challenges, social contribution, and sustainable living at the center of retirement. ᅠ More than a retirement guide, it is a practical philosophy for creating healthier, happier, and more meaningful lives in the Age of AI.