New Eden

"New Eden Project" The era after the "Great Silence": Humanity has experienced a technological explosion in the 22nd century (strong artificial intelligence, controllable nuclear fusion, preliminary gene editing), but what followed was the "Great Silence" - almost all of the probes and colonial spacecraft launched by humans into deep space lost contact or returned uninterpretable chaotic signals, leading to long-term stagnation in deep space exploration, and human beings fell into resource wars and ideological divisions (the "Hundred Years of Solitude"). "New Eden" Era: After hundreds of years of recuperation and slow recovery of technology, humans have established a stable "ring civilization" in the solar system (relying on the asteroid belt, Jupiter, Saturn, etc.) And restarted cautious deep space exploration. The science and technology tree is biased towards practicality: efficient space engineering, environmental recycling technology, strong biological adaptive transformation (non-superhumanization), limited super-light speed communication ("quantum echo") based on the principle of quantum entanglement, and highly developed but controlled AI-assisted decision-making. Interstellar travel still relies on generation spacecraft or near-light speed cryogenic voyages. "Echo" phenomenon: When humans re-explored the outer edge of the Kuiper Belt, they discovered an unusually stable "space-time fold" area ("abyss"), inside which there is a strange type of ** non-electromagnetic energy radiation, called "cosmic echo" (referred to as "echo"). It can weakly affect biological neural activity, specific crystal structures, and may even encode information.