41:34
Math and Science
The Surprising Evidence our Universe is INSIDE a Black Hole
Math and Science builds the case that our entire observable universe might sit inside the event horizon of an unimaginably large black hole. The argument runs from John Michell's 1783 dark stars through Einstein's geometric gravity, Schwarzschild's solution, and the Event Horizon Telescope images of M87* and Sagittarius A*, to a striking coincidence: the math for a black hole interior and an expanding universe both begin in a singularity, and in some solutions both expand. It folds in Nikodem Poplawski's proposal that black holes might bounce and birth new universes. The video closes honestly on whether the idea can ever be tested, through the cosmic microwave background, cosmic geometry, and gravitational waves.