In the Apocalypse of the Ice River, I Have Accumulated Hundreds of Billions of Supplies

In 2050, the world will enter a highly digital era, with holographic projections and AI assistants becoming popular, and big data monitoring covering every corner of life. Abnormal solar activity has caused the Earth's core to cool. The world is about to enter the "Eternal Night Ice Age" in three months' time, with temperatures plummeting to -60°C and the order of civilization collapsing.