Explore the potential future of humanity in this public lecture by Sir Martin Rees, UK Astronomer Royal, at the Perimeter Institute. Delve into the advancements in biotech, cyber-technology, robotics, and space exploration that could shape a bright future, while also examining the significant risks facing society. Learn about world population trends, food security, climate change, and political challenges. Discover the potential of geoengineering, regulation, and the social implications of AI and robotics. Consider the future of personal identity, space exploration, and the search for extraterrestrial life. Gain insights into the timescales of technological progress and the possibilities that lie beyond our current horizon.