What Existed Before the Big Bang | Science For Sleep

What existed before the Big Bang? This video takes you on a cinematic journey into the deepest mysteries of cosmic origins, exploring ideas that stretch far beyond everyday physics and into the edges of imagination.
In this long-form science story, you’ll travel through fourteen rich chapters that unravel competing theories about the universe’s earliest moments. You’ll hear how time itself may have switched on with the Big Bang, why quantum fluctuations might have sparked reality from a jitter in the vacuum, and how inflation erased any trace of what may have come before. You’ll explore dramatic concepts like a bouncing cosmos cycling through expansions and contractions, higher-dimensional branes colliding in an interdimensional fender-bender, and a multiverse where our universe is just one bubble in an endless cosmic sea.
Key moments include:- The Big Bang as a dramatic cosmic entrance- How time may have begun with the universe- Philosophical perspectives on why the question of before might not make sense at all
By the end, you’ll have a sweeping, story-driven understanding of how scientists and philosophers approach the biggest question of all: where did everything come from, and what does it mean if the universe has no true beginning?
This channel creates calm, immersive science documentaries designed to help you drift into sleep while learning about the wonders of the cosmos.