The Nostalgia of the Universe Is Written to Those Who Look up at the Stars

"Nostalgia of the Universe - Written for Those Who Look Up at the Starry Sky" is a cross-border philosophy and natural science essay. It uses cutting-edge theories of physics as its skeleton to ask an ancient and universal philosophical question: Why do we feel inexplicable "nostalgia" in our hearts when we look up at the stars? Every atom in your body comes from a dead star. The throbbing under the starry sky late at night is not an illusory sentimentality, but the imprint left when the universe was "created" 13.8 Billion years ago. It is the whisper when the particles that make up you reunite with the photons from your hometown. From the "silence" of the E₈ symmetry phase, to the foundation of "existence" when symmetry is broken for the first time, to the "return" heralded by gravity, consciousness, and black holes - this is a cosmic epic about "existence" and "beings" themselves. It makes everyone who looks up at the stars feel: You are not a tiny speck of dust, you are the eyes that the universe uses to see itself. This is a man who looks up at the stars, and answers to mankind's questions about "existence", "beings" and "nostalgia" for more than two thousand years.