Tokyo continues to attract a disproportionate share of Japan’s university enrollments and corporate headquarters, outpacing comparable European mega-cities in terms of functional concentration. While the overall population has risen modestly over the past five years, but the city is aging; the proportion of residents over 65 is high and continues to increase. Large‑scale infrastructure projects proceed on schedule, and the public‑transport network routinely handles tens of millions of passenger trips daily with high punctuality. Air quality measurements place Tokyo among the cleanest major cities. Resilience strategies encompass the world’s largest underground flood control system and AI‑driven sea level projections that anticipate substantial future impacts. Exploring these themes, this talk demonstrates how hyper‑concentrated mega-cities can sustain functionality and adaptability through coordinated governance, technological innovation, and proactive risk mitigation. But will this be enough, when the next big disaster strikes? Details and registration here