Cheng Xin's Choice: The Fall of Deterrence and Humanity's Universal Broadcast

The New Sword Holder and Deterrence's End

• 💡 Cheng Xin is selected as the new Sword Holder, replacing Luo Ji, amidst societal changes and a public desire for a less aggressive deterrent.
• 📌 Luo Ji, after 54 years as Sword Holder, transfers the gravitational wave broadcast switch to Cheng Xin deep underground, only to be immediately arrested for Mundicide.
• ⚠️ Shortly after the handover, six Tricolarian droplets attack Earth's gravitational wave transmitters, and Cheng Xin's hesitation to act leads to the destruction of the deterrence system.

Space Missions and Unforeseen Events

• 🚀 The spaceship Gravity pursues Blue Space into deep space, with its crew experiencing strange phenomena like micrometeoroid strikes and disappearing ship sections.
• 🔬 The crew of Blue Space successfully disables the accompanying Tricolarian droplets, preventing the destruction of Gravity and revealing their advanced capabilities.
• 🧠 Dr. Guanifan introduces the concept of the universe's "three and 300,000 syndrome," describing its limitations due to the speed of light and three dimensions.

Tricolarian Invasion and Forced Resettlement

• 🚨 Tricolaris announces a second fleet capable of light-speed travel will arrive in four years, demanding humanity's disarmament and resettlement to Australia and Mars.
• 🌍 The Great Resettlement to Australia leads to severe overcrowding, food shortages, and social collapse, with Sofon enforcing order through brutal violence.
• 👁️ Cheng Xin experiences blindness and learns from Sofon that she was kept alive as a "safety shield" against further deterrence, while Wade warns her to leave Australia.

Humanity's Last Stand in Space

• 🌌 The combined crews of Blue Space and Gravity discover Earth's fate and the incoming light-speed Tricolarian fleet.
• ✅ Facing imminent annihilation, they hold a referendum to activate the universal broadcast, revealing the location of Tricolaris to the universe.
• 🔥 Despite the risk of destroying two worlds, the crews vote to broadcast, hoping to force the Tricolarans to leave the Solar System and buy Earth time.