Dimensionality Reducer

No system, no tasks. There is only one story about a physicist who survives in the apocalypse by understanding. If you also want to see how a person can get from the ruins to the end of the rules by relying on calculations—— Welcome to "Dimensionality Reducer". On March 15, 2147, a high-dimensional civilization photographed the earth into a piece of paper. 70% Of the 8 billion people died, leaving 2.4 Billion struggling in the ruins. Jiang Du woke up in the ruins. He is 101 years old and his body has been restructured to be 25 years old. He forgot who he was, but he didn't forget physics. When he saw a mutant dog, something popped up in his mind: g value 9.802734, Friction coefficient 0.3, Air resistance... And then he ran away. It's not that he can't beat him, it's that he's still calculating the best escape route. This is Jiang Du. He is not a warrior, he is a physicist.