Thousand-Year Leap and Eternal Consciousness

The male and female protagonists start in 2050 and span a thousand years, each leading the development of a high-level civilization of carbon-based and silicon-based life. One uses a super-intelligent robot as a carrier on Earth to upload consciousness to achieve physical immortality, and the other takes a spaceship to achieve super-light interstellar travel, slowing down time and achieving eternal youth in disguise. After meeting again, we look at each other in confusion, can everything continue...