White Holes Without

I aspire to understand all of this some day. The best part: “The negative square root solution outisde the horizon represents another Universe….The inhabitants [of the two Universes] can meet… and soon meet with regularity.”

The Seven Worlds

Embedding diagram of the Schwarzschild wormhole geometry, with white and black holes.The Schwarzschild metric admits negative square root as well as positive square root solutions for the geometry.

White Holes and Wormholes
By Andrew Hamilton, 2001

Schwarzschild wormhole

The complete Schwarzschild geometry consists of a black hole, a white hole, and two Universes connected at their horizons by a wormhole.

The negative square root solution inside the horizon represents a white hole. A white hole is a black hole running backwards in time. Just as black holes swallow things irretrievably, so also do white holes spit them out.

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