二向箔

## 二向箔 | Dual-Vector Foil ### 中文简介 | Chinese #### 概述 二向箔是《三体III：死神永生》中的维度打击武器，强制将三维空间降维为二维空间。 #### 外观 看起来像一张透明的小纸片，大小和扑克牌差不多，边缘发光。看起来毫无威胁——这正是它最危险的地方。 #### 工作原理 1. **投放** → 2. **激活**（接触到三维空间后开始展开）→ 3. **二维化**（以光速扩散）→ 4. **不可逆** #### 太阳系的毁灭 二维化从太阳系外围开始，逐渐向内推进。最先被吞噬的是冥王星，最后是太阳。整个太阳系在数天内变成了一幅巨大的二维画卷。 ### English Overview The Dual-Vector Foil is a dimensional attack weapon from *Death's End* (Three-Body III). It forcibly reduces three-dimensional space to two dimensions. #### Appearance Like a transparent playing card with glowing edges. It appears harmless — which is exactly what makes it so terrifying. #### Mechanism 1. **Deployment** → 2. **Activation** (begins unfolding upon contact with 3D space) → 3. **2D-ization** (expands at light speed) → 4. **Irreversible** #### Destruction of the Solar System The 2D-ization began from the outer Solar System and advanced inward. Pluto was consumed first, then the outer planets, and finally the Sun. Within days, the entire Solar System became a giant 2D painting. #### Why It's Unstoppable - Expands at light speed — inescapable without lightspeed ships - The 3D-to-2D conversion is a fundamental physical law, not an attack - Every 3D being is "flattened" — total annihilation ### Deeper Meaning The Dual-Vector Foil suggests the absolute dominance of higher-dimensional civilizations over lower ones. In the final chapters, the Zero-Homers seek to reset the universe by reducing all dimensions to zero.