The Three-Body Problem, both the book by Liu Cixin and its TV adaptations, explores deep concepts in advanced physics and cosmology while intertwining them with philosophical implications about humanity’s place in the universe. Some of the most significant physics topics covered include: 1. The Three-Body Problem in Classical Mechanics At its core, the title refers to the famous unsolvable problem in Newtonian mechanics: predicting the motion of three celestial bodies interacting gravitationally