Nathan Cheng, who left his PhD in physics to dive into longevity research, shares his ambitious vision for extending human lifespan. He discusses revolutionary ideas like body replacement, organ cloning, and brain emulation. Cheng explores bioengineering advancements that could halt aging and the ethical dilemmas surrounding organ replacement. He highlights innovative approaches to advocacy, fostering community engagement in longevity, and the cultural shift needed to prioritize anti-aging initiatives. It's a fascinating journey into the future of human health!