Rebirth of a New Era of Physics

Going back in time, following the footsteps of the past? Or say goodbye to the past completely? Can the people around me be found again? What is this world really like? How is gravity produced? How is space curved? Does quality really exist? Where does matter come from? Li Hong went back to the past, developed science and technology, rethought the development of physics, published a new theory, and opened a new era of physics.