What are the scientific stalks in Three-body?

Important people and organizations:

Shi Qiang: An unqualified policeman with military experience, with great nerves, low emotional intelligence but keen observation, is an anti-terrorism expert who never leaves his hand and is good at crooked ways.

Wang Miao: The professor who studies nanomaterials joined the scientific field only to prove Shi Qiang's ignorance and stupidity.

Chang Weisi: Major General in the army, from Bole, Shi Qiang.

Yang Dong: Goddess Wang Miao, the proponent of superstring model, denied the existence of physics in her suicide note.

Ding Yi: Yang Dong's boyfriend discovered macro atoms in the study of spherical lightning.

Scientific boundary: an organization composed of top international scholars, which aims to study whether there is a bottom line for scientific understanding of nature.

Global war zone: a war organization jointly established by all countries in the world.

Synopsis: Top scientists, including Yang Dong, committed suicide one after another, and their suicide notes all point to a problem-physics does not exist. Man is at war.

Faced with this situation, the government and the military urgently need someone to enter the scientific boundary organization to obtain relevant information, so Chang Weisi sent Shi Qiang to invite Wang Miao to attend the meeting, accompanied by Yi Ding, NATO soldiers and American officials. At the meeting, Chang Weisi hoped that Wang Miao would join the scientific boundary. Wang Miao refused at first because she didn't have time, but Shi Qiang urged her to join.

After the meeting, Chang Weisi told Wang Miao that human history was an accident and everything was lucky.

Wang Miao decided to go to Rockett.

Reading question: How can physics not exist? Mention whether nanomaterials have other uses; Yang Dong sketched or otherwise paved the way; What kind of war will unite China, the United States and NATO? Why did Chang Weisi say that?