Event Description
Humanity's carefully prepared Bunker Project was based on an incorrect assumption — that attackers would use a photoid to destroy the sun. When the actual strike came, its form was entirely unexpected. A two-dimensional foil — a minuscule fragment of two-dimensional space — was launched into the solar system. When it contacted matter in three-dimensional space, it began irreversibly converting surrounding space from three dimensions to two.
The two-dimensionalization began near Pluto's orbit and spread like a contagion. Everything in three-dimensional space — matter, energy, space itself — was unfolded onto a plane upon contacting the dimensional boundary. The sun, once two-dimensionalized, became an enormous circular pattern with its internal structure displayed in concentric layers like tree rings. Planets were pressed into the plane one by one — Earth's oceans, continents, and mountains became two-dimensional cross-sectional patterns. Inhabitants of the bunker cities were not spared either, with human bodies unfolded into anatomical diagrams on the plane.
Only a tiny number of humans — including Cheng Xin and AA — escaped the solar system aboard lightspeed ships developed from intelligence hidden in Yun Tianming's fairy tales. Looking back from their lightspeed vessel, they witnessed the once-vast three-dimensional solar system transforming into an immense two-dimensional scroll. Everything that had existed in the solar system for billions of years — including human civilization — came to an end.